72153164 has 6 divisors (see below), whose sum is σ = 126268044. Its totient is φ = 36076580.

The previous prime is 72153163. The next prime is 72153167. The reversal of 72153164 is 46135127.

It is not an unprimeable number, because it can be changed into a prime (72153163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9019142 + ... + 9019149.

It is an arithmetic number, because the mean of its divisors is an integer number (21044674).

Almost surely, 2^72153164 is an apocalyptic number.

It is an amenable number.

72153164 is a deficient number, since it is larger than the sum of its proper divisors (54114880).

72153164 is a wasteful number, since it uses less digits than its factorization.

72153164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18038295 (or 18038293 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 72153164 is about 8494.3018547730. The cubic root of 72153164 is about 416.3115500851.

The spelling of 72153164 in words is "seventy-two million, one hundred fifty-three thousand, one hundred sixty-four".