173043253 has 4 divisors (see below), whose sum is σ = 173429100. Its totient is φ = 172657408.

The previous prime is 173043239. The next prime is 173043281. The reversal of 173043253 is 352340371.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352340371 = 619 ⋅569209.

It can be written as a sum of positive squares in 2 ways, for example, as 81324324 + 91718929 = 9018^2 + 9577^2 .

It is a cyclic number.

It is not a de Polignac number, because 173043253 - 2⁹ = 173042741 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 (173043293) 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 3 ways as a sum of consecutive naturals, for example, 192250 + ... + 193147.

It is an arithmetic number, because the mean of its divisors is an integer number (43357275).

Almost surely, 2^173043253 is an apocalyptic number.

It is an amenable number.

173043253 is a deficient number, since it is larger than the sum of its proper divisors (385847).

173043253 is an equidigital number, since it uses as much as digits as its factorization.

173043253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385846.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 173043253 is about 13154.5905675547. The cubic root of 173043253 is about 557.2518986944.

The spelling of 173043253 in words is "one hundred seventy-three million, forty-three thousand, two hundred fifty-three".