138 (one hundred ndthirty-eight) is the

natural number In mathematics, the natural numbers are those numbers used for counting (as in "there are ''six'' coins on the table") and ordering (as in "this is the ''third'' largest city in the country"). Numbers used for counting are called ''Cardinal n ...

following 137 and preceding

139 139 may refer to: * 139 (number), an integer * AD 139, a year of the Julian calendar * 139 BC, a year of the pre-Julian Roman calendar * 139 (New Jersey bus) 139 may refer to: * 139 (number), an integer * AD 139, a year of the Julian calendar * 13 ...

In mathematics

138 is a

sphenic number In number theory, a sphenic number (from grc, σφήνα, 'wedge') is a positive integer that is the product of three distinct prime numbers. Because there are infinitely many prime numbers, there are also infinitely many sphenic numbers. Definit ...

, the sum of four consecutive primes (29 + 31 + 37 + 41), and the smallest product of three primes, such that in base 10, the third prime is a

concatenation In formal language theory and computer programming, string concatenation is the operation of joining character strings end-to-end. For example, the concatenation of "snow" and "ball" is "snowball". In certain formalisations of concatenat ...

of the other two:

2 \cdot 3 \cdot 23

. 138 is the third 47- gonal number and an

Ulam number In mathematics, the Ulam numbers comprise an integer sequence devised by and named after Stanislaw Ulam, who introduced it in 1964. The standard Ulam sequence (the (1, 2)-Ulam sequence) starts with ''U''1 = 1 and ''U''2 =&nbs ...

, as well as a one step palindrome (138 + 831 = 969.) 138 is the 72nd normal

congruent number In number theory, a congruent number is a positive integer that is the area of a right triangle with three rational number sides. A more general definition includes all positive rational numbers with this property. The sequence of (integer) c ...

and the 49th primitive or square free congruent number.

In astronomy

* 138 Tolosa is a brightly colored, stony

main belt The asteroid belt is a torus-shaped region in the Solar System, located roughly between the orbits of the planets Jupiter and Mars. It contains a great many solid, irregularly shaped bodies, of many sizes, but much smaller than planets, called ...

asteroid An asteroid is a minor planet of the inner Solar System. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter; they are rocky, metallic or icy bodies with no atmosphere. ...

* The

New General Catalogue The ''New General Catalogue of Nebulae and Clusters of Stars'' (abbreviated NGC) is an astronomical catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, including galaxies, star clusters and ...

object NGC-138, a spiral galaxy in the constellation

Pisces Pisces may refer to: * Pisces, an obsolete (because of land vertebrates) taxonomic superclass including all fish * Pisces (astrology), an astrological sign * Pisces (constellation), a constellation **Pisces Overdensity, an overdensity of stars in ...

* The Saros number of the

solar eclipse A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of the Earth, totally or partially. Such an alignment occurs during an eclipse season, approximately every six month ...

series which began on June 6, 1472 and will end on July 11, 2716. The duration of

Saros series The saros () is a period of exactly 223 synodic months, approximately 6585.3211 days, or 18 years, 10, 11, or 12 days (depending on the number of leap years), and 8 hours, that can be used to predict eclipses of the Sun and Moon. One saros period a ...

138 is 1244 years, and it contains 70

solar eclipses A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of the Earth, totally or partially. Such an alignment occurs during an eclipse season, approximately every six mont ...

* 138P/Shoemaker-Levy is a periodic

comet A comet is an icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process that is called outgassing. This produces a visible atmosphere or coma, and sometimes also a tail. These phenomena ar ...

in the

Solar System The Solar SystemCapitalization of the name varies. The International Astronomical Union, the authoritative body regarding astronomical nomenclature, specifies capitalizing the names of all individual astronomical objects but uses mixed "Solar S ...

In the military

United States Air Force The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal ...

138th Fighter Wing The 138th Fighter Wing (138 FW) is a unit of the Oklahoma Air National Guard, stationed at the Tulsa Air National Guard Base at Tulsa International Airport in Tulsa, Oklahoma. If activated to federal service as a United States Air Force unit, th ...

fighter unit stationed at

Tulsa International Airport Tulsa International Airport is a civil-military airport five miles (8 km) northeast of downtown Tulsa, in Tulsa County, Oklahoma, United States. It was named Tulsa Municipal Airport when the city acquired it in 1929;Oklahoma Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...

* was a

United States Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...

, transferred to the Soviet Navy in 1943 * was a United States Navy during

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

* was a United States Navy during World War II * was a United States Navy during World War II * was a United States Navy during World War II * was a United States Navy during World War II

In transportation

* 138th Street–Grand Concourse,

the Bronx The Bronx () is a borough of New York City, coextensive with Bronx County, in the state of New York. It is south of Westchester County; north and east of the New York City borough of Manhattan, across the Harlem River; and north of the New Y ...

station on the

IRT Jerome Avenue Line The IRT Jerome Avenue Line, also unofficially known as IRT Woodlawn Line and IRT Burnside Avenue Line is an A Division (New York City Subway), A Division New York City Subway line mostly along Jerome Avenue in the Bronx. Originally an Interboroug ...

of the

New York City Subway The New York City Subway is a rapid transit system owned by the government of New York City and leased to the New York City Transit Authority, an affiliate agency of the state-run Metropolitan Transportation Authority (MTA). Opened on October 2 ...

* Third Avenue–138th Street,

station on the

IRT Pelham Line The IRT Pelham Line is a rapid transit line on the New York City Subway, operated as part of the A Division and served by the 6 and <6> trains. It was built as part of the Dual Contracts expansion and opened between 1918 and 1920. It is ...

of the

In media

We Are 138 "We Are 138" is a song by the American punk rock band Misfits. Written by vocalist Glenn Danzig, the song was recorded in 1978 and released that same year on the band's single " Bullet", sharing the A-side with the title track. It was also includ ...

", a 1978 song by the American punk rock band

Misfits Misfits or The Misfits may refer to: Film and television * ''The Misfits'' (1961 film), a film starring Clark Gable, Marilyn Monroe, and Montgomery Clift * ''The Misfits'' (2011 film), a Mexican film * ''The Misfits'' (2021 film), an American ...

*'' 1.3.8.'', a 2000 compilation album by the American

death metal Death metal is an extreme subgenre of heavy metal music. It typically employs heavily distorted and low-tuned guitars, played with techniques such as palm muting and tremolo picking; deep growling vocals; aggressive, powerful drumming, feat ...

band

Devourment Devourment is an American death metal band from Dallas, Texas. Formed in 1995, the band has split up and reformed three times leaving Brad Fincher as the only original member. The current lineup is Ruben Rosas, Chris Andrews, Dave Spencer and B ...

In other fields

138 is also: * The year

AD 138 Year 138 ( CXXXVIII) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Niger and Camerinus (or, less frequently, year 891 ''Ab urbe con ...

or 138 BC * The

atomic number The atomic number or nuclear charge number (symbol ''Z'') of a chemical element is the charge number of an atomic nucleus. For ordinary nuclei, this is equal to the proton number (''n''p) or the number of protons found in the nucleus of every ...

of untrioctium, a temporary

chemical element A chemical element is a species of atoms that have a given number of protons in their nuclei, including the pure substance consisting only of that species. Unlike chemical compounds, chemical elements cannot be broken down into simpler sub ...

Psalm 138 Psalm 138 is the 138th psalm of the Book of Psalms, beginning in English in the King James Version: "I will praise thee with my whole heart". In Latin, it is known as "Confitebor tibi Domine in toto corde meo". The psalm is a hymn psalm. In the ...

Sonnet 138 Sonnet 138 is one of the most famous of William Shakespeare's sonnets. Making use of frequent puns ("lie" and "lie" being the most obvious), it shows an understanding of the nature of truth and flattery in romantic relationships. The poem has ...

William Shakespeare William Shakespeare ( 26 April 1564 – 23 April 1616) was an English playwright, poet and actor. He is widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist. He is often called England's nation ...

* In immunology, CD138 (syndecan-1) is used as a distinguishing marker for plasma cells. McHeyzer-Williams MG, McLean MJ, Lalor PA, Nossal GJV. Antigen- driven B cell differentiation in vivo. J Exp Med. 1993;178:295–307.

References

138 Constellations