137934931 has 2 divisors, whose sum is σ = 137934932. Its totient is φ = 137934930.

The previous prime is 137934917. The next prime is 137934941. The reversal of 137934931 is 139439731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137934931 - 2¹³ = 137926739 is a prime.

It is a super-2 number, since 2×137934931² = 38052090379949522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (137934941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68967465 + 68967466.

It is an arithmetic number, because the mean of its divisors is an integer number (68967466).

Almost surely, 2^137934931 is an apocalyptic number.

137934931 is a deficient number, since it is larger than the sum of its proper divisors (1).

137934931 is an equidigital number, since it uses as much as digits as its factorization.

137934931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 40.

The square root of 137934931 is about 11744.5702773665. The cubic root of 137934931 is about 516.6836917502.

The spelling of 137934931 in words is "one hundred thirty-seven million, nine hundred thirty-four thousand, nine hundred thirty-one".