22157164 has 12 divisors (see below), whose sum is σ = 38808000. Its totient is φ = 11069168.

The previous prime is 22157143. The next prime is 22157167. The reversal of 22157164 is 46175122.

It is not an unprimeable number, because it can be changed into a prime (22157167) 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, 8037 + ... + 10435.

It is an arithmetic number, because the mean of its divisors is an integer number (3234000).

Almost surely, 2^22157164 is an apocalyptic number.

It is an amenable number.

22157164 is a deficient number, since it is larger than the sum of its proper divisors (16650836).

22157164 is a wasteful number, since it uses less digits than its factorization.

22157164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4712 (or 4710 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 22157164 is about 4707.1396835021. The cubic root of 22157164 is about 280.8695924404.

The spelling of 22157164 in words is "twenty-two million, one hundred fifty-seven thousand, one hundred sixty-four".