72957152 has 12 divisors (see below), whose sum is σ = 143634456. Its totient is φ = 36478560.

The previous prime is 72957107. The next prime is 72957191. The reversal of 72957152 is 25175927.

It is a super-2 number, since 2×72957152² = 10645492055902208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139924 + ... + 1139987.

It is an arithmetic number, because the mean of its divisors is an integer number (11969538).

Almost surely, 2^72957152 is an apocalyptic number.

It is an amenable number.

72957152 is a deficient number, since it is larger than the sum of its proper divisors (70677304).

72957152 is a wasteful number, since it uses less digits than its factorization.

72957152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279921 (or 2279913 counting only the distinct ones).

The product of its digits is 44100, while the sum is 38.

The square root of 72957152 is about 8541.4958877236. The cubic root of 72957152 is about 417.8521336225.

The spelling of 72957152 in words is "seventy-two million, nine hundred fifty-seven thousand, one hundred fifty-two".