72113573 has 8 divisors (see below), whose sum is σ = 82521792. Its totient is φ = 61731936.

The previous prime is 72113563. The next prime is 72113599. The reversal of 72113573 is 37531127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72113573 - 2⁸ = 72113317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72113563) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 440 + ... + 12017.

It is an arithmetic number, because the mean of its divisors is an integer number (10315224).

Almost surely, 2^72113573 is an apocalyptic number.

It is an amenable number.

72113573 is a deficient number, since it is larger than the sum of its proper divisors (10408219).

72113573 is a wasteful number, since it uses less digits than its factorization.

72113573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13291.

The product of its digits is 4410, while the sum is 29.

The square root of 72113573 is about 8491.9710903889. The cubic root of 72113573 is about 416.2353916964.

The spelling of 72113573 in words is "seventy-two million, one hundred thirteen thousand, five hundred seventy-three".