137629231 has 2 divisors, whose sum is σ = 137629232. Its totient is φ = 137629230.

The previous prime is 137629223. The next prime is 137629267. The reversal of 137629231 is 132926731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137629231 - 2³ = 137629223 is a prime.

It is a super-2 number, since 2×137629231² = 37883610451302722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137629201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68814615 + 68814616.

It is an arithmetic number, because the mean of its divisors is an integer number (68814616).

Almost surely, 2^137629231 is an apocalyptic number.

137629231 is a deficient number, since it is larger than the sum of its proper divisors (1).

137629231 is an equidigital number, since it uses as much as digits as its factorization.

137629231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 34.

The square root of 137629231 is about 11731.5485337614. The cubic root of 137629231 is about 516.3017072071.

The spelling of 137629231 in words is "one hundred thirty-seven million, six hundred twenty-nine thousand, two hundred thirty-one".