72015265 has 16 divisors (see below), whose sum is σ = 102170880. Its totient is φ = 47678400.

The previous prime is 72015259. The next prime is 72015271. The reversal of 72015265 is 56251027.

It is an interprime number because it is at equal distance from previous prime (72015259) and next prime (72015271).

It is not a de Polignac number, because 72015265 - 2⁷ = 72015137 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 34461 + ... + 36490.

It is an arithmetic number, because the mean of its divisors is an integer number (6385680).

Almost surely, 2^72015265 is an apocalyptic number.

It is an amenable number.

72015265 is a deficient number, since it is larger than the sum of its proper divisors (30155615).

72015265 is a wasteful number, since it uses less digits than its factorization.

72015265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70992.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 72015265 is about 8486.1808253183. The cubic root of 72015265 is about 416.0461629769.

The spelling of 72015265 in words is "seventy-two million, fifteen thousand, two hundred sixty-five".