315387457 has 16 divisors (see below), whose sum is σ = 402804864. Its totient is φ = 239760000.

The previous prime is 315387419. The next prime is 315387473. The reversal of 315387457 is 754783513.

It is a cyclic number.

It is not a de Polignac number, because 315387457 - 2¹¹ = 315385409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315387487) 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 in 15 ways as a sum of consecutive naturals, for example, 46794 + ... + 53107.

It is an arithmetic number, because the mean of its divisors is an integer number (25175304).

Almost surely, 2^315387457 is an apocalyptic number.

It is an amenable number.

315387457 is a deficient number, since it is larger than the sum of its proper divisors (87417407).

315387457 is a wasteful number, since it uses less digits than its factorization.

315387457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99960.

The product of its digits is 352800, while the sum is 43.

The square root of 315387457 is about 17759.1513592289. The cubic root of 315387457 is about 680.6880701093.

It can be divided in two parts, 315387 and 457, that added together give a square (315844 = 562²).

The spelling of 315387457 in words is "three hundred fifteen million, three hundred eighty-seven thousand, four hundred fifty-seven".