72162753 has 16 divisors (see below), whose sum is σ = 108124800. Its totient is φ = 42476544.

The previous prime is 72162743. The next prime is 72162781. The reversal of 72162753 is 35726127.

It is not a de Polignac number, because 72162753 - 2⁶ = 72162689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72162743) 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, 39328 + ... + 41121.

It is an arithmetic number, because the mean of its divisors is an integer number (6757800).

Almost surely, 2^72162753 is an apocalyptic number.

It is an amenable number.

72162753 is a deficient number, since it is larger than the sum of its proper divisors (35962047).

72162753 is a wasteful number, since it uses less digits than its factorization.

72162753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80488.

The product of its digits is 17640, while the sum is 33.

The square root of 72162753 is about 8494.8662732264. The cubic root of 72162753 is about 416.3299915708.

The spelling of 72162753 in words is "seventy-two million, one hundred sixty-two thousand, seven hundred fifty-three".