173725 has 6 divisors (see below), whose sum is σ = 215450. Its totient is φ = 138960.

The previous prime is 173713. The next prime is 173729. The reversal of 173725 is 527371.

It can be written as a sum of positive squares in 3 ways, for example, as 34596 + 139129 = 186^2 + 373^2 .

It is not a de Polignac number, because 173725 - 2¹³ = 165533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 6949 = 173725 / (1 + 7 + 3 + 7 + 2 + 5).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 173725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3450 + ... + 3499.

2¹⁷³⁷²⁵ is an apocalyptic number.

It is an amenable number.

173725 is a deficient number, since it is larger than the sum of its proper divisors (41725).

173725 is an equidigital number, since it uses as much as digits as its factorization.

173725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6959 (or 6954 counting only the distinct ones).

The product of its digits is 1470, while the sum is 25.

The square root of 173725 is about 416.8033109273. The cubic root of 173725 is about 55.7982750630.

It can be divided in two parts, 173 and 725, that added together give a palindrome (898).

The spelling of 173725 in words is "one hundred seventy-three thousand, seven hundred twenty-five".