315868512 has 48 divisors (see below), whose sum is σ = 830556720. Its totient is φ = 105111552.

The previous prime is 315868481. The next prime is 315868513. The reversal of 315868512 is 215868513.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315868513) 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 7 ways as a sum of consecutive naturals, for example, 62164 + ... + 67052.

It is an arithmetic number, because the mean of its divisors is an integer number (17303265).

Almost surely, 2^315868512 is an apocalyptic number.

315868512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

315868512 is an abundant number, since it is smaller than the sum of its proper divisors (514688208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315868512 is a wasteful number, since it uses less digits than its factorization.

315868512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5575 (or 5567 counting only the distinct ones).

The product of its digits is 57600, while the sum is 39.

The square root of 315868512 is about 17772.6900608771. The cubic root of 315868512 is about 681.0339748576.

Subtracting from 315868512 its reverse (215868513), we obtain a palindrome (99999999).

The spelling of 315868512 in words is "three hundred fifteen million, eight hundred sixty-eight thousand, five hundred twelve".