72365115 has 16 divisors (see below), whose sum is σ = 116126208. Its totient is φ = 38480736.

The previous prime is 72365113. The next prime is 72365143. The reversal of 72365115 is 51156327.

It is not a de Polignac number, because 72365115 - 2¹ = 72365113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72365113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1747 + ... + 12156.

It is an arithmetic number, because the mean of its divisors is an integer number (7257888).

Almost surely, 2^72365115 is an apocalyptic number.

72365115 is a deficient number, since it is larger than the sum of its proper divisors (43761093).

72365115 is a wasteful number, since it uses less digits than its factorization.

72365115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14258.

The product of its digits is 6300, while the sum is 30.

The square root of 72365115 is about 8506.7687755105. The cubic root of 72365115 is about 416.7187920566.

The spelling of 72365115 in words is "seventy-two million, three hundred sixty-five thousand, one hundred fifteen".