72941136 has 20 divisors (see below), whose sum is σ = 188431392. Its totient is φ = 24313696.

The previous prime is 72941111. The next prime is 72941149. The reversal of 72941136 is 63114927.

It is a junction number, because it is equal to n+sod(n) for n = 72941097 and 72941106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759756 + ... + 759851.

Almost surely, 2^72941136 is an apocalyptic number.

It is an amenable number.

72941136 is an abundant number, since it is smaller than the sum of its proper divisors (115490256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72941136 is a wasteful number, since it uses less digits than its factorization.

72941136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519618 (or 1519612 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 72941136 is about 8540.5582955683. The cubic root of 72941136 is about 417.8215548999.

The spelling of 72941136 in words is "seventy-two million, nine hundred forty-one thousand, one hundred thirty-six".