812056132 has 6 divisors (see below), whose sum is σ = 1421098238. Its totient is φ = 406028064.

The previous prime is 812056123. The next prime is 812056139. The reversal of 812056132 is 231650218.

812056132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 616727556 + 195328576 = 24834^2 + 13976^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 812056132.

It is not an unprimeable number, because it can be changed into a prime (812056139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101507013 + ... + 101507020.

Almost surely, 2^812056132 is an apocalyptic number.

It is an amenable number.

812056132 is a deficient number, since it is larger than the sum of its proper divisors (609042106).

812056132 is a wasteful number, since it uses less digits than its factorization.

812056132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203014037 (or 203014035 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 812056132 is about 28496.5986040440. The cubic root of 812056132 is about 932.9578359688.

The spelling of 812056132 in words is "eight hundred twelve million, fifty-six thousand, one hundred thirty-two".