812015434 has 8 divisors (see below), whose sum is σ = 1218153060. Its totient is φ = 405964416.

The previous prime is 812015377. The next prime is 812015443. The reversal of 812015434 is 434510218.

812015434 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 2 ways, for example, as 752679225 + 59336209 = 27435^2 + 7703^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 12672 + ... + 42244.

Almost surely, 2^812015434 is an apocalyptic number.

812015434 is a deficient number, since it is larger than the sum of its proper divisors (406137626).

812015434 is a wasteful number, since it uses less digits than its factorization.

812015434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43304.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 812015434 is about 28495.8845098726. The cubic root of 812015434 is about 932.9422499558.

The spelling of 812015434 in words is "eight hundred twelve million, fifteen thousand, four hundred thirty-four".