812941213 has 16 divisors (see below), whose sum is σ = 961052800. Its totient is φ = 687240288.

The previous prime is 812941177. The next prime is 812941229. The reversal of 812941213 is 312149218.

It is not a de Polignac number, because 812941213 - 2⁹ = 812940701 is a prime.

It is a super-2 number, since 2×812941213² = 1321746831587822738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812941243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8806 + ... + 41272.

It is an arithmetic number, because the mean of its divisors is an integer number (60065800).

Almost surely, 2^812941213 is an apocalyptic number.

It is an amenable number.

812941213 is a deficient number, since it is larger than the sum of its proper divisors (148111587).

812941213 is an equidigital number, since it uses as much as digits as its factorization.

812941213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32561 (or 32547 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 812941213 is about 28512.1239650784. The cubic root of 812941213 is about 933.2966645316.

The spelling of 812941213 in words is "eight hundred twelve million, nine hundred forty-one thousand, two hundred thirteen".