173204023 has 4 divisors (see below), whose sum is σ = 173313280. Its totient is φ = 173094768.

The previous prime is 173204011. The next prime is 173204029. The reversal of 173204023 is 320402371.

173204023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320402371 = 5849 ⋅54779.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-173204023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 173203985 and 173204003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173204029) 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, 52215 + ... + 55432.

It is an arithmetic number, because the mean of its divisors is an integer number (43328320).

Almost surely, 2^173204023 is an apocalyptic number.

173204023 is a deficient number, since it is larger than the sum of its proper divisors (109257).

173204023 is a wasteful number, since it uses less digits than its factorization.

173204023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109256.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 173204023 is about 13160.6999433921. The cubic root of 173204023 is about 557.4244213739.

Adding to 173204023 its reverse (320402371), we get a palindrome (493606394).

The spelling of 173204023 in words is "one hundred seventy-three million, two hundred four thousand, twenty-three".