72311059 has 4 divisors (see below), whose sum is σ = 72729216. Its totient is φ = 71892904.

The previous prime is 72311039. The next prime is 72311069. The reversal of 72311059 is 95011327.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72311059 - 2¹⁵ = 72278291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72311039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208819 + ... + 209164.

It is an arithmetic number, because the mean of its divisors is an integer number (18182304).

Almost surely, 2^72311059 is an apocalyptic number.

72311059 is a deficient number, since it is larger than the sum of its proper divisors (418157).

72311059 is a wasteful number, since it uses less digits than its factorization.

72311059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418156.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 72311059 is about 8503.5909473587. The cubic root of 72311059 is about 416.6150046525.

The spelling of 72311059 in words is "seventy-two million, three hundred eleven thousand, fifty-nine".