72130564 has 24 divisors (see below), whose sum is σ = 139075776. Its totient is φ = 32460000.

The previous prime is 72130559. The next prime is 72130567. The reversal of 72130564 is 46503127.

It is not an unprimeable number, because it can be changed into a prime (72130567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3672 + ... + 12559.

It is an arithmetic number, because the mean of its divisors is an integer number (5794824).

Almost surely, 2^72130564 is an apocalyptic number.

It is an amenable number.

72130564 is a deficient number, since it is larger than the sum of its proper divisors (66945212).

72130564 is a wasteful number, since it uses less digits than its factorization.

72130564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16347 (or 16345 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 72130564 is about 8492.9714470261. The cubic root of 72130564 is about 416.2680794872.

The spelling of 72130564 in words is "seventy-two million, one hundred thirty thousand, five hundred sixty-four".