931382057 has 2 divisors, whose sum is σ = 931382058. Its totient is φ = 931382056.

The previous prime is 931382051. The next prime is 931382141. The reversal of 931382057 is 750283139.

931382057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 722319376 + 209062681 = 26876^2 + 14459^2 .

It is a cyclic number.

It is not a de Polignac number, because 931382057 - 2¹² = 931377961 is a prime.

It is a super-2 number, since 2×931382057² = 1734945072203102498, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 931382057.

It is not a weakly prime, because it can be changed into another prime (931382051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 465691028 + 465691029.

It is an arithmetic number, because the mean of its divisors is an integer number (465691029).

Almost surely, 2^931382057 is an apocalyptic number.

It is an amenable number.

931382057 is a deficient number, since it is larger than the sum of its proper divisors (1).

931382057 is an equidigital number, since it uses as much as digits as its factorization.

931382057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 931382057 is about 30518.5526688275. The cubic root of 931382057 is about 976.5832901577.

The spelling of 931382057 in words is "nine hundred thirty-one million, three hundred eighty-two thousand, fifty-seven".