72546534 has 12 divisors (see below), whose sum is σ = 157184196. Its totient is φ = 24182172.

The previous prime is 72546527. The next prime is 72546553. The reversal of 72546534 is 43564527.

72546534 is a `hidden beast` number, since 72 + 54 + 6 + 534 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2015164 + ... + 2015199.

It is an arithmetic number, because the mean of its divisors is an integer number (13098683).

Almost surely, 2^72546534 is an apocalyptic number.

72546534 is an abundant number, since it is smaller than the sum of its proper divisors (84637662).

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

72546534 is a wasteful number, since it uses less digits than its factorization.

72546534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030371 (or 4030368 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 72546534 is about 8517.4253151994. The cubic root of 72546534 is about 417.0667387963.

The spelling of 72546534 in words is "seventy-two million, five hundred forty-six thousand, five hundred thirty-four".