331002961 has 2 divisors, whose sum is σ = 331002962. Its totient is φ = 331002960.

The previous prime is 331002941. The next prime is 331002983. The reversal of 331002961 is 169200133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326922561 + 4080400 = 18081^2 + 2020^2 .

It is a cyclic number.

It is not a de Polignac number, because 331002961 - 2⁵ = 331002929 is a prime.

It is not a weakly prime, because it can be changed into another prime (331002941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165501480 + 165501481.

It is an arithmetic number, because the mean of its divisors is an integer number (165501481).

Almost surely, 2^331002961 is an apocalyptic number.

It is an amenable number.

331002961 is a deficient number, since it is larger than the sum of its proper divisors (1).

331002961 is an equidigital number, since it uses as much as digits as its factorization.

331002961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 331002961 is about 18193.4867741178. The cubic root of 331002961 is about 691.7417043346.

The spelling of 331002961 in words is "three hundred thirty-one million, two thousand, nine hundred sixty-one".