131718797 has 12 divisors (see below), whose sum is σ = 152086176. Its totient is φ = 111744360.

The previous prime is 131718781. The next prime is 131718799. The reversal of 131718797 is 797817131.

It is not a de Polignac number, because 131718797 - 2⁴ = 131718781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131718799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347354 + ... + 347732.

It is an arithmetic number, because the mean of its divisors is an integer number (12673848).

Almost surely, 2^131718797 is an apocalyptic number.

It is an amenable number.

131718797 is a deficient number, since it is larger than the sum of its proper divisors (20367379).

131718797 is an frugal number, since it uses more digits than its factorization.

131718797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 517 counting only the distinct ones).

The product of its digits is 74088, while the sum is 44.

The square root of 131718797 is about 11476.8809787329. The cubic root of 131718797 is about 508.8025179461.

The spelling of 131718797 in words is "one hundred thirty-one million, seven hundred eighteen thousand, seven hundred ninety-seven".