12816315 has 12 divisors (see below), whose sum is σ = 22215024. Its totient is φ = 6835344.

The previous prime is 12816277. The next prime is 12816337. The reversal of 12816315 is 51361821.

12816315 is a `hidden beast` number, since 1 + 28 + 1 + 631 + 5 = 666.

It is not a de Polignac number, because 12816315 - 2⁸ = 12816059 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142359 + ... + 142448.

It is an arithmetic number, because the mean of its divisors is an integer number (1851252).

Almost surely, 2^12816315 is an apocalyptic number.

12816315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12816315 is a deficient number, since it is larger than the sum of its proper divisors (9398709).

12816315 is a wasteful number, since it uses less digits than its factorization.

12816315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284818 (or 284815 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 12816315 is about 3579.9881284719. The cubic root of 12816315 is about 234.0207630053.

It can be divided in two parts, 12816 and 315, that added together give a palindrome (13131).

The spelling of 12816315 in words is "twelve million, eight hundred sixteen thousand, three hundred fifteen".