812305532 has 6 divisors (see below), whose sum is σ = 1421534688. Its totient is φ = 406152764.

The previous prime is 812305531. The next prime is 812305579. The reversal of 812305532 is 235503218.

812305532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 812305495 and 812305504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812305531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101538188 + ... + 101538195.

It is an arithmetic number, because the mean of its divisors is an integer number (236922448).

Almost surely, 2^812305532 is an apocalyptic number.

It is an amenable number.

812305532 is a deficient number, since it is larger than the sum of its proper divisors (609229156).

812305532 is a wasteful number, since it uses less digits than its factorization.

812305532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203076387 (or 203076385 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 812305532 is about 28500.9742289628. The cubic root of 812305532 is about 933.0533367020.

The spelling of 812305532 in words is "eight hundred twelve million, three hundred five thousand, five hundred thirty-two".