72134544 has 40 divisors (see below), whose sum is σ = 186818400. Its totient is φ = 23984128.

The previous prime is 72134501. The next prime is 72134563. The reversal of 72134544 is 44543127.

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, 19879 + ... + 23225.

It is an arithmetic number, because the mean of its divisors is an integer number (4670460).

Almost surely, 2^72134544 is an apocalyptic number.

It is an amenable number.

72134544 is an abundant number, since it is smaller than the sum of its proper divisors (114683856).

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

72134544 is a wasteful number, since it uses less digits than its factorization.

72134544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3807 (or 3801 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 72134544 is about 8493.2057551904. The cubic root of 72134544 is about 416.2757355874.

The spelling of 72134544 in words is "seventy-two million, one hundred thirty-four thousand, five hundred forty-four".