75315972 has 24 divisors (see below), whose sum is σ = 175880992. Its totient is φ = 25084800.

The previous prime is 75315971. The next prime is 75315997. The reversal of 75315972 is 27951357.

It is a self number, because there is not a number n which added to its sum of digits gives 75315972.

It is not an unprimeable number, because it can be changed into a prime (75315971) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22572 + ... + 25692.

Almost surely, 2^75315972 is an apocalyptic number.

It is an amenable number.

75315972 is an abundant number, since it is smaller than the sum of its proper divisors (100565020).

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

75315972 is a wasteful number, since it uses less digits than its factorization.

75315972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139 (or 5137 counting only the distinct ones).

The product of its digits is 66150, while the sum is 39.

The square root of 75315972 is about 8678.4775162467. The cubic root of 75315972 is about 422.3077275993.

The spelling of 75315972 in words is "seventy-five million, three hundred fifteen thousand, nine hundred seventy-two".