72252156 has 48 divisors (see below), whose sum is σ = 172488960. Its totient is φ = 23533440.

The previous prime is 72252139. The next prime is 72252179. The reversal of 72252156 is 65125227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116415 + ... + 117033.

It is an arithmetic number, because the mean of its divisors is an integer number (3593520).

Almost surely, 2^72252156 is an apocalyptic number.

It is an amenable number.

72252156 is an abundant number, since it is smaller than the sum of its proper divisors (100236804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72252156 is a wasteful number, since it uses less digits than its factorization.

72252156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834 (or 832 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 72252156 is about 8500.1268225833. The cubic root of 72252156 is about 416.5018521132.

The spelling of 72252156 in words is "seventy-two million, two hundred fifty-two thousand, one hundred fifty-six".