72115175 has 12 divisors (see below), whose sum is σ = 97552536. Its totient is φ = 52447200.

The previous prime is 72115151. The next prime is 72115181. The reversal of 72115175 is 57151127.

It is not a de Polignac number, because 72115175 - 2⁸ = 72114919 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130844 + ... + 131393.

It is an arithmetic number, because the mean of its divisors is an integer number (8129378).

Almost surely, 2^72115175 is an apocalyptic number.

72115175 is a deficient number, since it is larger than the sum of its proper divisors (25437361).

72115175 is a wasteful number, since it uses less digits than its factorization.

72115175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262258 (or 262253 counting only the distinct ones).

The product of its digits is 2450, while the sum is 29.

The square root of 72115175 is about 8492.0654142558. The cubic root of 72115175 is about 416.2384738908.

The spelling of 72115175 in words is "seventy-two million, one hundred fifteen thousand, one hundred seventy-five".