331347085 has 24 divisors (see below), whose sum is σ = 440165880. Its totient is φ = 238605312.

The previous prime is 331347067. The next prime is 331347097. The reversal of 331347085 is 580743133.

It can be written as a sum of positive squares in 4 ways, for example, as 144696841 + 186650244 = 12029^2 + 13662^2 .

It is not a de Polignac number, because 331347085 - 2⁷ = 331346957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331347085.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41281 + ... + 48649.

It is an arithmetic number, because the mean of its divisors is an integer number (18340245).

Almost surely, 2^331347085 is an apocalyptic number.

It is an amenable number.

331347085 is a deficient number, since it is larger than the sum of its proper divisors (108818795).

331347085 is a wasteful number, since it uses less digits than its factorization.

331347085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7437 (or 7414 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 331347085 is about 18202.9416578750. The cubic root of 331347085 is about 691.9813421468.

The spelling of 331347085 in words is "three hundred thirty-one million, three hundred forty-seven thousand, eighty-five".