331160881 has 2 divisors, whose sum is σ = 331160882. Its totient is φ = 331160880.

The previous prime is 331160849. The next prime is 331160897. The reversal of 331160881 is 188061133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318265600 + 12895281 = 17840^2 + 3591^2 .

It is a cyclic number.

It is not a de Polignac number, because 331160881 - 2⁵ = 331160849 is a prime.

It is a super-2 number, since 2×331160881² = 219335058209392322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (331160281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165580440 + 165580441.

It is an arithmetic number, because the mean of its divisors is an integer number (165580441).

Almost surely, 2^331160881 is an apocalyptic number.

It is an amenable number.

331160881 is a deficient number, since it is larger than the sum of its proper divisors (1).

331160881 is an equidigital number, since it uses as much as digits as its factorization.

331160881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 331160881 is about 18197.8262712886. The cubic root of 331160881 is about 691.8516957796.

The spelling of 331160881 in words is "three hundred thirty-one million, one hundred sixty thousand, eight hundred eighty-one".