815022164 has 12 divisors (see below), whose sum is σ = 1555951488. Its totient is φ = 370464600.

The previous prime is 815022163. The next prime is 815022167. The reversal of 815022164 is 461220518.

It is a super-2 number, since 2×815022164² = 1328522255622485792, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (815022163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9261572 + ... + 9261659.

It is an arithmetic number, because the mean of its divisors is an integer number (129662624).

Almost surely, 2^815022164 is an apocalyptic number.

It is an amenable number.

815022164 is a deficient number, since it is larger than the sum of its proper divisors (740929324).

815022164 is a wasteful number, since it uses less digits than its factorization.

815022164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18523246 (or 18523244 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 815022164 is about 28548.5930301302. The cubic root of 815022164 is about 934.0923308497.

The spelling of 815022164 in words is "eight hundred fifteen million, twenty-two thousand, one hundred sixty-four".