812425136 has 20 divisors (see below), whose sum is σ = 1642512432. Its totient is φ = 388550976.

The previous prime is 812425129. The next prime is 812425157. The reversal of 812425136 is 631524218.

812425136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103471 + ... + 1104206.

Almost surely, 2^812425136 is an apocalyptic number.

It is an amenable number.

812425136 is an abundant number, since it is smaller than the sum of its proper divisors (830087296).

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

812425136 is a wasteful number, since it uses less digits than its factorization.

812425136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207708 (or 2207702 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 812425136 is about 28503.0723957962. The cubic root of 812425136 is about 933.0991287635.

The spelling of 812425136 in words is "eight hundred twelve million, four hundred twenty-five thousand, one hundred thirty-six".