12912495 has 16 divisors (see below), whose sum is σ = 21747840. Its totient is φ = 6524064.

The previous prime is 12912479. The next prime is 12912509. The reversal of 12912495 is 59421921.

It is not a de Polignac number, because 12912495 - 2⁴ = 12912479 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 22369 + ... + 22938.

It is an arithmetic number, because the mean of its divisors is an integer number (1359240).

Almost surely, 2^12912495 is an apocalyptic number.

12912495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12912495 is a deficient number, since it is larger than the sum of its proper divisors (8835345).

12912495 is a wasteful number, since it uses less digits than its factorization.

12912495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45334.

The product of its digits is 6480, while the sum is 33.

The square root of 12912495 is about 3593.3960260456. The cubic root of 12912495 is about 234.6047074159.

The spelling of 12912495 in words is "twelve million, nine hundred twelve thousand, four hundred ninety-five".