72158653 has 8 divisors (see below), whose sum is σ = 83061440. Its totient is φ = 61404480.

The previous prime is 72158627. The next prime is 72158657. The reversal of 72158653 is 35685127.

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 72158653 - 2²¹ = 70061501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72158657) 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, 36108 + ... + 38053.

It is an arithmetic number, because the mean of its divisors is an integer number (10382680).

Almost surely, 2^72158653 is an apocalyptic number.

It is an amenable number.

72158653 is a deficient number, since it is larger than the sum of its proper divisors (10902787).

72158653 is a wasteful number, since it uses less digits than its factorization.

72158653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74307.

The product of its digits is 50400, while the sum is 37.

The square root of 72158653 is about 8494.6249475771. The cubic root of 72158653 is about 416.3221066845.

The spelling of 72158653 in words is "seventy-two million, one hundred fifty-eight thousand, six hundred fifty-three".