173153 has 4 divisors (see below), whose sum is σ = 174000. Its totient is φ = 172308.

The previous prime is 173149. The next prime is 173177. The reversal of 173153 is 351371.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 351371 = 23 ⋅15277.

It is a cyclic number.

It is not a de Polignac number, because 173153 - 2² = 173149 is a prime.

It is a super-2 number, since 2×173153² = 59963922818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173183) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 98 + ... + 596.

It is an arithmetic number, because the mean of its divisors is an integer number (43500).

2¹⁷³¹⁵³ is an apocalyptic number.

It is an amenable number.

173153 is a deficient number, since it is larger than the sum of its proper divisors (847).

173153 is an equidigital number, since it uses as much as digits as its factorization.

173153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846.

The product of its digits is 315, while the sum is 20.

The square root of 173153 is about 416.1165702060. The cubic root of 173153 is about 55.7369680037.

The spelling of 173153 in words is "one hundred seventy-three thousand, one hundred fifty-three".