315385250 has 32 divisors (see below), whose sum is σ = 600108912. Its totient is φ = 124080000.

The previous prime is 315385249. The next prime is 315385253. The reversal of 315385250 is 52583513.

It can be written as a sum of positive squares in 8 ways, for example, as 39526369 + 275858881 = 6287^2 + 16609^2 .

It is not an unprimeable number, because it can be changed into a prime (315385253) 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, 4910 + ... + 25590.

Almost surely, 2^315385250 is an apocalyptic number.

315385250 is a deficient number, since it is larger than the sum of its proper divisors (284723662).

315385250 is a wasteful number, since it uses less digits than its factorization.

315385250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20759 (or 20749 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 315385250 is about 17759.0892221420. The cubic root of 315385250 is about 680.6864823458.

The spelling of 315385250 in words is "three hundred fifteen million, three hundred eighty-five thousand, two hundred fifty".