72148418 has 16 divisors (see below), whose sum is σ = 109287960. Its totient is φ = 35721216.

The previous prime is 72148399. The next prime is 72148451. The reversal of 72148418 is 81484127.

It can be written as a sum of positive squares in 4 ways, for example, as 71690089 + 458329 = 8467^2 + 677^2 .

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, 157646 + ... + 158102.

Almost surely, 2^72148418 is an apocalyptic number.

72148418 is a deficient number, since it is larger than the sum of its proper divisors (37139542).

72148418 is a wasteful number, since it uses less digits than its factorization.

72148418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061.

The product of its digits is 14336, while the sum is 35.

The square root of 72148418 is about 8494.0224864313. The cubic root of 72148418 is about 416.3024220126.

The spelling of 72148418 in words is "seventy-two million, one hundred forty-eight thousand, four hundred eighteen".