315832457 has 2 divisors, whose sum is σ = 315832458. Its totient is φ = 315832456.

The previous prime is 315832411. The next prime is 315832501. The reversal of 315832457 is 754238513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226321936 + 89510521 = 15044^2 + 9461^2 .

It is a cyclic number.

It is not a de Polignac number, because 315832457 - 2¹² = 315828361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315832457.

It is not a weakly prime, because it can be changed into another prime (315832157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157916228 + 157916229.

It is an arithmetic number, because the mean of its divisors is an integer number (157916229).

Almost surely, 2^315832457 is an apocalyptic number.

It is an amenable number.

315832457 is a deficient number, since it is larger than the sum of its proper divisors (1).

315832457 is an equidigital number, since it uses as much as digits as its factorization.

315832457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 38.

The square root of 315832457 is about 17771.6756947678. The cubic root of 315832457 is about 681.0080615283.

The spelling of 315832457 in words is "three hundred fifteen million, eight hundred thirty-two thousand, four hundred fifty-seven".