812112842 has 8 divisors (see below), whose sum is σ = 1271133216. Its totient is φ = 388401772.

The previous prime is 812112823. The next prime is 812112853. The reversal of 812112842 is 248211218.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8827268 + ... + 8827359.

It is an arithmetic number, because the mean of its divisors is an integer number (158891652).

Almost surely, 2^812112842 is an apocalyptic number.

812112842 is a deficient number, since it is larger than the sum of its proper divisors (459020374).

812112842 is a wasteful number, since it uses less digits than its factorization.

812112842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17654652.

The product of its digits is 2048, while the sum is 29.

The square root of 812112842 is about 28497.5936177074. The cubic root of 812112842 is about 932.9795531898.

The spelling of 812112842 in words is "eight hundred twelve million, one hundred twelve thousand, eight hundred forty-two".