72988135 has 16 divisors (see below), whose sum is σ = 96540192. Its totient is φ = 52531200.

The previous prime is 72988121. The next prime is 72988163. The reversal of 72988135 is 53188927.

It is not a de Polignac number, because 72988135 - 2⁹ = 72987623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72988091 and 72988100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1506 + ... + 12175.

It is an arithmetic number, because the mean of its divisors is an integer number (6033762).

Almost surely, 2^72988135 is an apocalyptic number.

72988135 is a deficient number, since it is larger than the sum of its proper divisors (23552057).

72988135 is a wasteful number, since it uses less digits than its factorization.

72988135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13794.

The product of its digits is 120960, while the sum is 43.

The square root of 72988135 is about 8543.3093704957. The cubic root of 72988135 is about 417.9112755530.

The spelling of 72988135 in words is "seventy-two million, nine hundred eighty-eight thousand, one hundred thirty-five".