12916915 has 16 divisors (see below), whose sum is σ = 17646336. Its totient is φ = 8984800.

The previous prime is 12916907. The next prime is 12916931. The reversal of 12916915 is 51961921.

It is a happy number.

It is not a de Polignac number, because 12916915 - 2³ = 12916907 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3841 + ... + 6370.

It is an arithmetic number, because the mean of its divisors is an integer number (1102896).

Almost surely, 2^12916915 is an apocalyptic number.

12916915 is a deficient number, since it is larger than the sum of its proper divisors (4729421).

12916915 is a wasteful number, since it uses less digits than its factorization.

12916915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10250.

The product of its digits is 4860, while the sum is 34.

The square root of 12916915 is about 3594.0109905230. The cubic root of 12916915 is about 234.6314730800.

It can be divided in two parts, 12916 and 915, that added together give a palindrome (13831).

The spelling of 12916915 in words is "twelve million, nine hundred sixteen thousand, nine hundred fifteen".