164222972 has 12 divisors (see below), whose sum is σ = 287733096. Its totient is φ = 82013520.

The previous prime is 164222939. The next prime is 164223011. The reversal of 164222972 is 279222461.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20654 + ... + 27477.

It is an arithmetic number, because the mean of its divisors is an integer number (23977758).

Almost surely, 2^164222972 is an apocalyptic number.

It is an amenable number.

164222972 is a deficient number, since it is larger than the sum of its proper divisors (123510124).

164222972 is a wasteful number, since it uses less digits than its factorization.

164222972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48988 (or 48986 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 164222972 is about 12814.9511118849. The cubic root of 164222972 is about 547.6183207230.

The spelling of 164222972 in words is "one hundred sixty-four million, two hundred twenty-two thousand, nine hundred seventy-two".