157132931 has 2 divisors, whose sum is σ = 157132932. Its totient is φ = 157132930.

The previous prime is 157132903. The next prime is 157132939. The reversal of 157132931 is 139231751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157132931 - 2²² = 152938627 is a prime.

It is a super-2 number, since 2×157132931² = 49381516009301522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157132939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78566465 + 78566466.

It is an arithmetic number, because the mean of its divisors is an integer number (78566466).

Almost surely, 2^157132931 is an apocalyptic number.

157132931 is a deficient number, since it is larger than the sum of its proper divisors (1).

157132931 is an equidigital number, since it uses as much as digits as its factorization.

157132931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 32.

The square root of 157132931 is about 12535.2674881711. The cubic root of 157132931 is about 539.6212833833.

The spelling of 157132931 in words is "one hundred fifty-seven million, one hundred thirty-two thousand, nine hundred thirty-one".