12916545 has 16 divisors (see below), whose sum is σ = 20711040. Its totient is φ = 6873984.

The previous prime is 12916529. The next prime is 12916559. The reversal of 12916545 is 54561921.

It is not a de Polignac number, because 12916545 - 2⁴ = 12916529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13317 + ... + 14253.

It is an arithmetic number, because the mean of its divisors is an integer number (1294440).

Almost surely, 2^12916545 is an apocalyptic number.

12916545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12916545 is a deficient number, since it is larger than the sum of its proper divisors (7794495).

12916545 is an equidigital number, since it uses as much as digits as its factorization.

12916545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864.

The product of its digits is 10800, while the sum is 33.

The square root of 12916545 is about 3593.9595156317. The cubic root of 12916545 is about 234.6292327495.

The spelling of 12916545 in words is "twelve million, nine hundred sixteen thousand, five hundred forty-five".