72145682 has 16 divisors (see below), whose sum is σ = 124013760. Its totient is φ = 30835728.

The previous prime is 72145673. The next prime is 72145693. The reversal of 72145682 is 28654127.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1493 + ... + 12104.

It is an arithmetic number, because the mean of its divisors is an integer number (7750860).

Almost surely, 2^72145682 is an apocalyptic number.

72145682 is a deficient number, since it is larger than the sum of its proper divisors (51868078).

72145682 is a wasteful number, since it uses less digits than its factorization.

72145682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13985.

The product of its digits is 26880, while the sum is 35.

The square root of 72145682 is about 8493.8614304685. The cubic root of 72145682 is about 416.2971596296.

It can be divided in two parts, 72145 and 682, that added together give a palindrome (72827).

The spelling of 72145682 in words is "seventy-two million, one hundred forty-five thousand, six hundred eighty-two".