173163231 has 16 divisors (see below), whose sum is σ = 256811520. Its totient is φ = 115319160.

The previous prime is 173163229. The next prime is 173163253. The reversal of 173163231 is 132361371.

173163231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 173163231 - 2¹ = 173163229 is a prime.

It is a super-2 number, since 2×173163231² = 59971009140718722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 173163195 and 173163204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173163271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27466 + ... + 33176.

It is an arithmetic number, because the mean of its divisors is an integer number (16050720).

Almost surely, 2^173163231 is an apocalyptic number.

173163231 is a deficient number, since it is larger than the sum of its proper divisors (83648289).

173163231 is a wasteful number, since it uses less digits than its factorization.

173163231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6843 (or 6837 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 173163231 is about 13159.1500865367. The cubic root of 173163231 is about 557.3806574899.

The spelling of 173163231 in words is "one hundred seventy-three million, one hundred sixty-three thousand, two hundred thirty-one".