812122934 has 32 divisors (see below), whose sum is σ = 1441898496. Its totient is φ = 335705760.

The previous prime is 812122933. The next prime is 812122981. The reversal of 812122934 is 439221218.

It is a self number, because there is not a number n which added to its sum of digits gives 812122934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812122933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134627 + ... + 140529.

It is an arithmetic number, because the mean of its divisors is an integer number (45059328).

Almost surely, 2^812122934 is an apocalyptic number.

812122934 is a deficient number, since it is larger than the sum of its proper divisors (629775562).

812122934 is a wasteful number, since it uses less digits than its factorization.

812122934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260.

The product of its digits is 6912, while the sum is 32.

The square root of 812122934 is about 28497.7706847395. The cubic root of 812122934 is about 932.9834178377.

The spelling of 812122934 in words is "eight hundred twelve million, one hundred twenty-two thousand, nine hundred thirty-four".