173012231 has 16 divisors (see below), whose sum is σ = 206072640. Its totient is φ = 142114560.

The previous prime is 173012219. The next prime is 173012237. The reversal of 173012231 is 132210371.

It is a de Polignac number, because none of the positive numbers 2^k-173012231 is a prime.

It is a super-2 number, since 2×173012231² = 59866464151194722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173012237) 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, 24701 + ... + 30921.

It is an arithmetic number, because the mean of its divisors is an integer number (12879540).

Almost surely, 2^173012231 is an apocalyptic number.

173012231 is a deficient number, since it is larger than the sum of its proper divisors (33060409).

173012231 is a wasteful number, since it uses less digits than its factorization.

173012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6394.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 173012231 is about 13153.4113826034. The cubic root of 173012231 is about 557.2185966129.

The spelling of 173012231 in words is "one hundred seventy-three million, twelve thousand, two hundred thirty-one".