315155122 has 16 divisors (see below), whose sum is σ = 502254360. Its totient is φ = 148030848.

The previous prime is 315155111. The next prime is 315155149. The reversal of 315155122 is 221551513.

It can be written as a sum of positive squares in 4 ways, for example, as 315098001 + 57121 = 17751^2 + 239^2 .

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, 71283 + ... + 75574.

Almost surely, 2^315155122 is an apocalyptic number.

315155122 is a deficient number, since it is larger than the sum of its proper divisors (187099238).

315155122 is a wasteful number, since it uses less digits than its factorization.

315155122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146925.

The product of its digits is 1500, while the sum is 25.

The square root of 315155122 is about 17752.6088786972. The cubic root of 315155122 is about 680.5208826186.

The spelling of 315155122 in words is "three hundred fifteen million, one hundred fifty-five thousand, one hundred twenty-two".