72548161 has 8 divisors (see below), whose sum is σ = 82969920. Its totient is φ = 62140848.

The previous prime is 72548107. The next prime is 72548167. The reversal of 72548161 is 16184527.

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

It is not a de Polignac number, because 72548161 - 2²⁵ = 38993729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72548167) 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, 11235 + ... + 16471.

It is an arithmetic number, because the mean of its divisors is an integer number (10371240).

Almost surely, 2^72548161 is an apocalyptic number.

It is an amenable number.

72548161 is a deficient number, since it is larger than the sum of its proper divisors (10421759).

72548161 is a wasteful number, since it uses less digits than its factorization.

72548161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7223.

The product of its digits is 13440, while the sum is 34.

The square root of 72548161 is about 8517.5208247471. The cubic root of 72548161 is about 417.0698566228.

The spelling of 72548161 in words is "seventy-two million, five hundred forty-eight thousand, one hundred sixty-one".