72113759 has 8 divisors (see below), whose sum is σ = 75990000. Its totient is φ = 68245632.

The previous prime is 72113737. The next prime is 72113791. The reversal of 72113759 is 95731127.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 72113759 - 2¹² = 72109663 is a prime.

It is a super-2 number, since 2×72113759² = 10400788474220162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72113059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27017 + ... + 29565.

It is an arithmetic number, because the mean of its divisors is an integer number (9498750).

Almost surely, 2^72113759 is an apocalyptic number.

72113759 is a deficient number, since it is larger than the sum of its proper divisors (3876241).

72113759 is a wasteful number, since it uses less digits than its factorization.

72113759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057.

The product of its digits is 13230, while the sum is 35.

The square root of 72113759 is about 8491.9820419028. The cubic root of 72113759 is about 416.2357495565.

The spelling of 72113759 in words is "seventy-two million, one hundred thirteen thousand, seven hundred fifty-nine".