72513183 has 16 divisors (see below), whose sum is σ = 98640000. Its totient is φ = 47369760.

The previous prime is 72513173. The next prime is 72513187. The reversal of 72513183 is 38131527.

It is not a de Polignac number, because 72513183 - 2¹⁰ = 72512159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72513183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72513187) 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, 87913 + ... + 88733.

It is an arithmetic number, because the mean of its divisors is an integer number (6165000).

Almost surely, 2^72513183 is an apocalyptic number.

72513183 is a deficient number, since it is larger than the sum of its proper divisors (26126817).

72513183 is a wasteful number, since it uses less digits than its factorization.

72513183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382.

The product of its digits is 5040, while the sum is 30.

The square root of 72513183 is about 8515.4672801908. The cubic root of 72513183 is about 417.0028178705.

The spelling of 72513183 in words is "seventy-two million, five hundred thirteen thousand, one hundred eighty-three".