315223250 has 16 divisors (see below), whose sum is σ = 590098392. Its totient is φ = 126089200.

The previous prime is 315223247. The next prime is 315223267. The reversal of 315223250 is 52322513.

315223250 = T₂₁₈₃ + T₂₁₈₄ + ... + T₂₃₀₇.

It can be written as a sum of positive squares in 4 ways, for example, as 34023889 + 281199361 = 5833^2 + 16769^2 .

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, 630197 + ... + 630696.

Almost surely, 2^315223250 is an apocalyptic number.

315223250 is a deficient number, since it is larger than the sum of its proper divisors (274875142).

315223250 is a wasteful number, since it uses less digits than its factorization.

315223250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260910 (or 1260900 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 315223250 is about 17754.5275915751. The cubic root of 315223250 is about 680.5699158122.

Adding to 315223250 its reverse (52322513), we get a palindrome (367545763).

The spelling of 315223250 in words is "three hundred fifteen million, two hundred twenty-three thousand, two hundred fifty".