75172 has 6 divisors (see below), whose sum is σ = 131558. Its totient is φ = 37584.

The previous prime is 75169. The next prime is 75181. The reversal of 75172 is 27157.

It can be written as a sum of positive squares in only one way, i.e., 69696 + 5476 = 264^2 + 74^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9393 + ... + 9400.

2⁷⁵¹⁷² is an apocalyptic number.

It is an amenable number.

75172 is a deficient number, since it is larger than the sum of its proper divisors (56386).

75172 is a wasteful number, since it uses less digits than its factorization.

75172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18797 (or 18795 counting only the distinct ones).

The product of its digits is 490, while the sum is 22.

The square root of 75172 is about 274.1751265159. The cubic root of 75172 is about 42.2038465231.

The spelling of 75172 in words is "seventy-five thousand, one hundred seventy-two".