173481231 has 16 divisors (see below), whose sum is σ = 288384768. Its totient is φ = 90120000.

The previous prime is 173481227. The next prime is 173481233. The reversal of 173481231 is 132184371.

It is not a de Polignac number, because 173481231 - 2² = 173481227 is a prime.

It is a super-2 number, since 2×173481231² = 60191475018550722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173481233) 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, 375270 + ... + 375731.

It is an arithmetic number, because the mean of its divisors is an integer number (18024048).

Almost surely, 2^173481231 is an apocalyptic number.

173481231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

173481231 is a deficient number, since it is larger than the sum of its proper divisors (114903537).

173481231 is a wasteful number, since it uses less digits than its factorization.

173481231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751022.

The product of its digits is 4032, while the sum is 30.

The square root of 173481231 is about 13171.2273915532. The cubic root of 173481231 is about 557.7216433885.

The spelling of 173481231 in words is "one hundred seventy-three million, four hundred eighty-one thousand, two hundred thirty-one".