131717172 has 24 divisors (see below), whose sum is σ = 308802592. Its totient is φ = 43696800.

The previous prime is 131717123. The next prime is 131717197. The reversal of 131717172 is 271717131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23479 + ... + 28542.

Almost surely, 2^131717172 is an apocalyptic number.

131717172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131717172 is an abundant number, since it is smaller than the sum of its proper divisors (177085420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131717172 is a wasteful number, since it uses less digits than its factorization.

131717172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52239 (or 52237 counting only the distinct ones).

The product of its digits is 2058, while the sum is 30.

The square root of 131717172 is about 11476.8101840189. The cubic root of 131717172 is about 508.8004255910.

The spelling of 131717172 in words is "one hundred thirty-one million, seven hundred seventeen thousand, one hundred seventy-two".