812118298 has 4 divisors (see below), whose sum is σ = 1218177450. Its totient is φ = 406059148.

The previous prime is 812118289. The next prime is 812118301. The reversal of 812118298 is 892811218.

812118298 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 626150529 + 185967769 = 25023^2 + 13637^2 .

It is a super-2 number, since 2×812118298² = 1319072259892833608, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 812118298.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203029573 + ... + 203029576.

Almost surely, 2^812118298 is an apocalyptic number.

812118298 is a deficient number, since it is larger than the sum of its proper divisors (406059152).

812118298 is a wasteful number, since it uses less digits than its factorization.

812118298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406059151.

The product of its digits is 18432, while the sum is 40.

The square root of 812118298 is about 28497.6893449276. The cubic root of 812118298 is about 932.9816425238.

The spelling of 812118298 in words is "eight hundred twelve million, one hundred eighteen thousand, two hundred ninety-eight".