813156232 has 32 divisors (see below), whose sum is σ = 1743393600. Its totient is φ = 348312384.

The previous prime is 813156217. The next prime is 813156269. The reversal of 813156232 is 232651318.

813156232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×813156232² = 1322446115280875648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 813156194 and 813156203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200319 + ... + 204337.

It is an arithmetic number, because the mean of its divisors is an integer number (54481050).

Almost surely, 2^813156232 is an apocalyptic number.

It is an amenable number.

813156232 is an abundant number, since it is smaller than the sum of its proper divisors (930237368).

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

813156232 is a wasteful number, since it uses less digits than its factorization.

813156232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7645 (or 7641 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 813156232 is about 28515.8943748920. The cubic root of 813156232 is about 933.3789414221.

The spelling of 813156232 in words is "eight hundred thirteen million, one hundred fifty-six thousand, two hundred thirty-two".