172975 has 24 divisors (see below), whose sum is σ = 254448. Its totient is φ = 115200.

The previous prime is 172973. The next prime is 172981. The reversal of 172975 is 579271.

It is not a de Polignac number, because 172975 - 2¹ = 172973 is a prime.

It is a Duffinian number.

Its product of digits (4410) is a multiple of the sum of its prime divisors (70).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4657 + ... + 4693.

It is an arithmetic number, because the mean of its divisors is an integer number (10602).

2¹⁷²⁹⁷⁵ is an apocalyptic number.

172975 is a deficient number, since it is larger than the sum of its proper divisors (81473).

172975 is a wasteful number, since it uses less digits than its factorization.

172975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 70 counting only the distinct ones).

The product of its digits is 4410, while the sum is 31.

The square root of 172975 is about 415.9026328361. The cubic root of 172975 is about 55.7178623921.

It can be divided in two parts, 17 and 2975, that added together give a palindrome (2992).

The spelling of 172975 in words is "one hundred seventy-two thousand, nine hundred seventy-five".