172453 has 4 divisors (see below), whose sum is σ = 178048. Its totient is φ = 166860.

The previous prime is 172441. The next prime is 172489. The reversal of 172453 is 354271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 172453 - 2⁵ = 172421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2751 + ... + 2812.

It is an arithmetic number, because the mean of its divisors is an integer number (44512).

2¹⁷²⁴⁵³ is an apocalyptic number.

It is an amenable number.

172453 is a deficient number, since it is larger than the sum of its proper divisors (5595).

172453 is an equidigital number, since it uses as much as digits as its factorization.

172453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5594.

The product of its digits is 840, while the sum is 22.

The square root of 172453 is about 415.2746079403. The cubic root of 172453 is about 55.6617578868.

It can be divided in two parts, 172 and 453, that added together give a 4-th power (625 = 5⁴).

The spelling of 172453 in words is "one hundred seventy-two thousand, four hundred fifty-three".