315627665 has 8 divisors (see below), whose sum is σ = 379015848. Its totient is φ = 252327040.

The previous prime is 315627659. The next prime is 315627671. The reversal of 315627665 is 566726513.

It is an interprime number because it is at equal distance from previous prime (315627659) and next prime (315627671).

It can be written as a sum of positive squares in 4 ways, for example, as 177235969 + 138391696 = 13313^2 + 11764^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 315627665 - 2⁸ = 315627409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13676 + ... + 28605.

It is an arithmetic number, because the mean of its divisors is an integer number (47376981).

Almost surely, 2^315627665 is an apocalyptic number.

It is an amenable number.

315627665 is a deficient number, since it is larger than the sum of its proper divisors (63388183).

315627665 is a wasteful number, since it uses less digits than its factorization.

315627665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43779.

The product of its digits is 226800, while the sum is 41.

The square root of 315627665 is about 17765.9130077798. The cubic root of 315627665 is about 680.8608366789.

The spelling of 315627665 in words is "three hundred fifteen million, six hundred twenty-seven thousand, six hundred sixty-five".