72331154 has 32 divisors (see below), whose sum is σ = 127948800. Its totient is φ = 30651264.

The previous prime is 72331151. The next prime is 72331169. The reversal of 72331154 is 45113327.

It is not an unprimeable number, because it can be changed into a prime (72331151) 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, 65999 + ... + 67085.

It is an arithmetic number, because the mean of its divisors is an integer number (3998400).

Almost surely, 2^72331154 is an apocalyptic number.

72331154 is a deficient number, since it is larger than the sum of its proper divisors (55617646).

72331154 is a wasteful number, since it uses less digits than its factorization.

72331154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1193 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 72331154 is about 8504.7724249388. The cubic root of 72331154 is about 416.6535930476.

The spelling of 72331154 in words is "seventy-two million, three hundred thirty-one thousand, one hundred fifty-four".