812233136 has 40 divisors (see below), whose sum is σ = 1848829584. Its totient is φ = 340796160.

The previous prime is 812233129. The next prime is 812233151. The reversal of 812233136 is 631332218.

It is a junction number, because it is equal to n+sod(n) for n = 812233099 and 812233108.

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 7 ways as a sum of consecutive naturals, for example, 175211 + ... + 179786.

Almost surely, 2^812233136 is an apocalyptic number.

It is an amenable number.

812233136 is an abundant number, since it is smaller than the sum of its proper divisors (1036596448).

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

812233136 is a wasteful number, since it uses less digits than its factorization.

812233136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355029 (or 355023 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 812233136 is about 28499.7041388152. The cubic root of 812233136 is about 933.0256166987.

The spelling of 812233136 in words is "eight hundred twelve million, two hundred thirty-three thousand, one hundred thirty-six".