72265185 has 24 divisors (see below), whose sum is σ = 129302784. Its totient is φ = 37297440.

The previous prime is 72265177. The next prime is 72265201. The reversal of 72265185 is 58156227.

It is a happy number.

It is not a de Polignac number, because 72265185 - 2³ = 72265177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24507 + ... + 27296.

It is an arithmetic number, because the mean of its divisors is an integer number (5387616).

Almost surely, 2^72265185 is an apocalyptic number.

It is an amenable number.

72265185 is a deficient number, since it is larger than the sum of its proper divisors (57037599).

72265185 is a wasteful number, since it uses less digits than its factorization.

72265185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51845 (or 51842 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 72265185 is about 8500.8931883656. The cubic root of 72265185 is about 416.5268860904.

The spelling of 72265185 in words is "seventy-two million, two hundred sixty-five thousand, one hundred eighty-five".