72179152 has 20 divisors (see below), whose sum is σ = 145928160. Its totient is φ = 34520288.

The previous prime is 72179143. The next prime is 72179183. The reversal of 72179152 is 25197127.

It is a super-3 number, since 3×72179152³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97702 + ... + 98437.

It is an arithmetic number, because the mean of its divisors is an integer number (7296408).

Almost surely, 2^72179152 is an apocalyptic number.

It is an amenable number.

72179152 is an abundant number, since it is smaller than the sum of its proper divisors (73749008).

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

72179152 is a wasteful number, since it uses less digits than its factorization.

72179152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196170 (or 196164 counting only the distinct ones).

The product of its digits is 8820, while the sum is 34.

The square root of 72179152 is about 8495.8314484222. The cubic root of 72179152 is about 416.3615262066.

The spelling of 72179152 in words is "seventy-two million, one hundred seventy-nine thousand, one hundred fifty-two".