315311255 has 16 divisors (see below), whose sum is σ = 451229184. Its totient is φ = 206812320.

The previous prime is 315311237. The next prime is 315311317. The reversal of 315311255 is 552113513.

It is a happy number.

It is not a de Polignac number, because 315311255 - 2⁸ = 315310999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195041 + ... + 196650.

It is an arithmetic number, because the mean of its divisors is an integer number (28201824).

Almost surely, 2^315311255 is an apocalyptic number.

315311255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

315311255 is a deficient number, since it is larger than the sum of its proper divisors (135917929).

315311255 is a wasteful number, since it uses less digits than its factorization.

315311255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391726.

The product of its digits is 2250, while the sum is 26.

The square root of 315311255 is about 17757.0058005284. The cubic root of 315311255 is about 680.6332444558.

Adding to 315311255 its reverse (552113513), we get a palindrome (867424768).

The spelling of 315311255 in words is "three hundred fifteen million, three hundred eleven thousand, two hundred fifty-five".