315212315 has 32 divisors (see below), whose sum is σ = 428544000. Its totient is φ = 220579200.

The previous prime is 315212311. The next prime is 315212323. The reversal of 315212315 is 513212513.

It is a happy number.

It is not a de Polignac number, because 315212315 - 2² = 315212311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315212311) 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 31 ways as a sum of consecutive naturals, for example, 156686 + ... + 158684.

It is an arithmetic number, because the mean of its divisors is an integer number (13392000).

Almost surely, 2^315212315 is an apocalyptic number.

315212315 is a deficient number, since it is larger than the sum of its proper divisors (113331685).

315212315 is a wasteful number, since it uses less digits than its factorization.

315212315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123.

The product of its digits is 900, while the sum is 23.

The square root of 315212315 is about 17754.2196392858. The cubic root of 315212315 is about 680.5620461324.

Adding to 315212315 its reverse (513212513), we get a palindrome (828424828).

The spelling of 315212315 in words is "three hundred fifteen million, two hundred twelve thousand, three hundred fifteen".