137 (number): Meaning (information, definition, explanation, facts)

137 is the natural number following 136 and preceding 138.

Mathematics

One hundred thirty-seven is the 33rd prime number; the next is 139, with which it comprises a twin prime.

Using two radii to divide a circle according to the golden ratio yields sectors of approximately 137° (the golden angle) and 222°.

The numerical value of the fine structure constant α, a dimensionless physical constant, is approximately 1/137. The physicist Arthur Eddington at one time thought α to be exactly 1/137, but careful measurements have shown this not to be the case: its value is currently estimated at 1/137.035 999 76(50).

137 is also:

• The year AD 137 or 137 BC.

See also: 130s, list of numbers