72305113 has 16 divisors (see below), whose sum is σ = 76723200. Its totient is φ = 68048640.

The previous prime is 72305111. The next prime is 72305137. The reversal of 72305113 is 31150327.

It is a cyclic number.

It is not a de Polignac number, because 72305113 - 2¹ = 72305111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72305111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201228 + ... + 201586.

It is an arithmetic number, because the mean of its divisors is an integer number (4795200).

Almost surely, 2^72305113 is an apocalyptic number.

72305113 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

72305113 is a deficient number, since it is larger than the sum of its proper divisors (4418087).

72305113 is a wasteful number, since it uses less digits than its factorization.

72305113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 72305113 is about 8503.2413231661. The cubic root of 72305113 is about 416.6035851880.

The spelling of 72305113 in words is "seventy-two million, three hundred five thousand, one hundred thirteen".