315422865 has 12 divisors (see below), whose sum is σ = 546733044. Its totient is φ = 168225504.

The previous prime is 315422837. The next prime is 315422893. The reversal of 315422865 is 568224513.

315422865 is a `hidden beast` number, since 31 + 542 + 2 + 86 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (315422837) and next prime (315422893).

It can be written as a sum of positive squares in 2 ways, for example, as 72437121 + 242985744 = 8511^2 + 15588^2 .

It is not a de Polignac number, because 315422865 - 2⁹ = 315422353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3504654 + ... + 3504743.

It is an arithmetic number, because the mean of its divisors is an integer number (45561087).

Almost surely, 2^315422865 is an apocalyptic number.

It is an amenable number.

315422865 is a deficient number, since it is larger than the sum of its proper divisors (231310179).

315422865 is a wasteful number, since it uses less digits than its factorization.

315422865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009408 (or 7009405 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 315422865 is about 17760.1482257328. The cubic root of 315422865 is about 680.7135423771.

The spelling of 315422865 in words is "three hundred fifteen million, four hundred twenty-two thousand, eight hundred sixty-five".