12812635 has 24 divisors (see below), whose sum is σ = 17433936. Its totient is φ = 8964480.

The previous prime is 12812629. The next prime is 12812647. The reversal of 12812635 is 53621821.

It is not a de Polignac number, because 12812635 - 2⁹ = 12812123 is a prime.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 46117 + ... + 46393.

It is an arithmetic number, because the mean of its divisors is an integer number (726414).

Almost surely, 2^12812635 is an apocalyptic number.

12812635 is a deficient number, since it is larger than the sum of its proper divisors (4621301).

12812635 is a wasteful number, since it uses less digits than its factorization.

12812635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 322 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 12812635 is about 3579.4741233874. The cubic root of 12812635 is about 233.9983624207.

It can be divided in two parts, 1281 and 2635, that added together give a triangular number (3916 = T₈₈).

The spelling of 12812635 in words is "twelve million, eight hundred twelve thousand, six hundred thirty-five".