12966315 has 16 divisors (see below), whose sum is σ = 20802048. Its totient is φ = 6896736.

The previous prime is 12966311. The next prime is 12966323. The reversal of 12966315 is 51366921.

It is a happy number.

It is not a de Polignac number, because 12966315 - 2² = 12966311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12966311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6012 + ... + 7878.

It is an arithmetic number, because the mean of its divisors is an integer number (1300128).

Almost surely, 2^12966315 is an apocalyptic number.

12966315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12966315 is a deficient number, since it is larger than the sum of its proper divisors (7835733).

12966315 is a wasteful number, since it uses less digits than its factorization.

12966315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338.

The product of its digits is 9720, while the sum is 33.

The square root of 12966315 is about 3600.8769765156. The cubic root of 12966315 is about 234.9302041102.

Subtracting from 12966315 its product of digits (9720), we obtain a triangular number (12956595 = T₅₀₉₀).

The spelling of 12966315 in words is "twelve million, nine hundred sixty-six thousand, three hundred fifteen".