173239243 has 16 divisors (see below), whose sum is σ = 188179200. Its totient is φ = 158989600.

The previous prime is 173239201. The next prime is 173239249. The reversal of 173239243 is 342932371.

It is not a de Polignac number, because 173239243 - 2¹⁷ = 173108171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 173239199 and 173239208.

It is not an unprimeable number, because it can be changed into a prime (173239249) 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, 118668 + ... + 120118.

It is an arithmetic number, because the mean of its divisors is an integer number (11761200).

Almost surely, 2^173239243 is an apocalyptic number.

173239243 is a deficient number, since it is larger than the sum of its proper divisors (14939957).

173239243 is a wasteful number, since it uses less digits than its factorization.

173239243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682.

The product of its digits is 27216, while the sum is 34.

The square root of 173239243 is about 13162.0379501048. The cubic root of 173239243 is about 557.4622017849.

The spelling of 173239243 in words is "one hundred seventy-three million, two hundred thirty-nine thousand, two hundred forty-three".