232715531 has 2 divisors, whose sum is σ = 232715532. Its totient is φ = 232715530.

The previous prime is 232715519. The next prime is 232715537. The reversal of 232715531 is 135517232.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232715531 is a prime.

It is a super-2 number, since 2×232715531² = 108313036737223922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 232715494 and 232715503.

It is not a weakly prime, because it can be changed into another prime (232715537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116357765 + 116357766.

It is an arithmetic number, because the mean of its divisors is an integer number (116357766).

Almost surely, 2^232715531 is an apocalyptic number.

232715531 is a deficient number, since it is larger than the sum of its proper divisors (1).

232715531 is an equidigital number, since it uses as much as digits as its factorization.

232715531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 29.

The square root of 232715531 is about 15255.0165847173. The cubic root of 232715531 is about 615.0944231164.

The spelling of 232715531 in words is "two hundred thirty-two million, seven hundred fifteen thousand, five hundred thirty-one".