12534815 has 16 divisors (see below), whose sum is σ = 15698880. Its totient is φ = 9596160.

The previous prime is 12534803. The next prime is 12534857. The reversal of 12534815 is 51843521.

It is not a de Polignac number, because 12534815 - 2¹⁸ = 12272671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

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, 19550 + ... + 20180.

It is an arithmetic number, because the mean of its divisors is an integer number (981180).

Almost surely, 2^12534815 is an apocalyptic number.

12534815 is a deficient number, since it is larger than the sum of its proper divisors (3164065).

12534815 is a wasteful number, since it uses less digits than its factorization.

12534815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802.

The product of its digits is 4800, while the sum is 29.

The square root of 12534815 is about 3540.4540669242. The cubic root of 12534815 is about 232.2947045078.

The spelling of 12534815 in words is "twelve million, five hundred thirty-four thousand, eight hundred fifteen".