812612136 has 32 divisors (see below), whose sum is σ = 2321749440. Its totient is φ = 232174848.

The previous prime is 812612131. The next prime is 812612173. The reversal of 812612136 is 631216218.

812612136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (812612131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2418321 + ... + 2418656.

It is an arithmetic number, because the mean of its divisors is an integer number (72554670).

Almost surely, 2^812612136 is an apocalyptic number.

It is an amenable number.

812612136 is an abundant number, since it is smaller than the sum of its proper divisors (1509137304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812612136 is a wasteful number, since it uses less digits than its factorization.

812612136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4836993 (or 4836989 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 812612136 is about 28506.3525551762. The cubic root of 812612136 is about 933.1707153189.

The spelling of 812612136 in words is "eight hundred twelve million, six hundred twelve thousand, one hundred thirty-six".