232609931 has 2 divisors, whose sum is σ = 232609932. Its totient is φ = 232609930.

The previous prime is 232609889. The next prime is 232609943. The reversal of 232609931 is 139906232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232609931 - 2¹⁴ = 232593547 is a prime.

It is a super-2 number, since 2×232609931² = 108214759999649522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 232609891 and 232609900.

It is not a weakly prime, because it can be changed into another prime (232609961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116304965 + 116304966.

It is an arithmetic number, because the mean of its divisors is an integer number (116304966).

Almost surely, 2^232609931 is an apocalyptic number.

232609931 is a deficient number, since it is larger than the sum of its proper divisors (1).

232609931 is an equidigital number, since it uses as much as digits as its factorization.

232609931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 232609931 is about 15251.5550354710. Note that the first 3 decimals coincide. The cubic root of 232609931 is about 615.0013713147.

The spelling of 232609931 in words is "two hundred thirty-two million, six hundred nine thousand, nine hundred thirty-one".