72313124 has 48 divisors (see below), whose sum is σ = 143001600. Its totient is φ = 31764096.

The previous prime is 72313103. The next prime is 72313139. The reversal of 72313124 is 42131327.

It is a self number, because there is not a number n which added to its sum of digits gives 72313124.

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, 118829 + ... + 119435.

It is an arithmetic number, because the mean of its divisors is an integer number (2979200).

Almost surely, 2^72313124 is an apocalyptic number.

It is an amenable number.

72313124 is a deficient number, since it is larger than the sum of its proper divisors (70688476).

72313124 is a wasteful number, since it uses less digits than its factorization.

72313124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732 (or 730 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 72313124 is about 8503.7123657847. The cubic root of 72313124 is about 416.6189703981.

The spelling of 72313124 in words is "seventy-two million, three hundred thirteen thousand, one hundred twenty-four".