239575961 has 2 divisors, whose sum is σ = 239575962. Its totient is φ = 239575960.

The previous prime is 239575957. The next prime is 239575993. The reversal of 239575961 is 169575932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203347600 + 36228361 = 14260^2 + 6019^2 .

It is a cyclic number.

It is not a de Polignac number, because 239575961 - 2² = 239575957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (239571961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119787980 + 119787981.

It is an arithmetic number, because the mean of its divisors is an integer number (119787981).

Almost surely, 2^239575961 is an apocalyptic number.

It is an amenable number.

239575961 is a deficient number, since it is larger than the sum of its proper divisors (1).

239575961 is an equidigital number, since it uses as much as digits as its factorization.

239575961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 510300, while the sum is 47.

The square root of 239575961 is about 15478.2415344896. The cubic root of 239575961 is about 621.0802888265.

The spelling of 239575961 in words is "two hundred thirty-nine million, five hundred seventy-five thousand, nine hundred sixty-one".