1370s Treaties
137 may refer to: *137 (number) *137 BC *AD 137 *137 (album), an album by The Pineapple Thief *137 (MBTA bus) *137 (New Jersey bus) 137 may refer to: *137 (number) *137 BC *AD 137 *137 (album), an album by The Pineapple Thief *137 (MBTA bus) The Massachusetts Bay Transportation Authority bus division operates bus routes in the Boston, Massachusetts metropolitan area. All ro ...

137 (number)
137 (one hundred ndthirty-seven) is the natural number following 136 and preceding 138. In mathematics 137 is: * the 33rd prime number; the next is 139, with which it comprises a twin prime, and thus 137 is a Chen prime. * an Eisenstein prime with no imaginary part and a real part of the form 3n - 1. * the fourth Stern prime. * a Pythagorean prime: a prime number of the form 4''n'' + 1, where ''n'' = 34 (137 = 4x34 + 1) or the sum of two squares 112 + 42 (121 + 16). * a strong prime in the sense that it is more than the arithmetic mean of its two neighboring primes. * a strictly non-palindromic number and a primeval number. * a factor of 10001 (the other being 73) and the repdigit 11111111 (= 10001 × 1111). * using two radii to divide a circle according to the golden ratio yields sectors of approximately 137° (the golden angle) and 222°. * 1/137 = 0.007299270072992700..., so its period value is palindromic and has a period length of only 8. In physics * Since the e ...
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