315969625 has 8 divisors (see below), whose sum is σ = 394330248. Its totient is φ = 252775600.

The previous prime is 315969617. The next prime is 315969637. The reversal of 315969625 is 526969513.

It can be written as a sum of positive squares in 4 ways, for example, as 978121 + 314991504 = 989^2 + 17748^2 .

It is not a de Polignac number, because 315969625 - 2³ = 315969617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1263754 + ... + 1264003.

It is an arithmetic number, because the mean of its divisors is an integer number (49291281).

Almost surely, 2^315969625 is an apocalyptic number.

It is an amenable number.

315969625 is a deficient number, since it is larger than the sum of its proper divisors (78360623).

315969625 is an equidigital number, since it uses as much as digits as its factorization.

315969625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527772 (or 2527762 counting only the distinct ones).

The product of its digits is 437400, while the sum is 46.

The square root of 315969625 is about 17775.5344504743. The cubic root of 315969625 is about 681.1066359377.

The spelling of 315969625 in words is "three hundred fifteen million, nine hundred sixty-nine thousand, six hundred twenty-five".