131718037 has 4 divisors (see below), whose sum is σ = 143692416. Its totient is φ = 119743660.

The previous prime is 131718007. The next prime is 131718053. The reversal of 131718037 is 730817131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131718037 - 2¹⁵ = 131685269 is a prime.

It is a super-2 number, since 2×131718037² = 34699282542266738, 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 (131718007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5987173 + ... + 5987194.

It is an arithmetic number, because the mean of its divisors is an integer number (35923104).

Almost surely, 2^131718037 is an apocalyptic number.

It is an amenable number.

131718037 is a deficient number, since it is larger than the sum of its proper divisors (11974379).

131718037 is a wasteful number, since it uses less digits than its factorization.

131718037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11974378.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 131718037 is about 11476.8478686441. The cubic root of 131718037 is about 508.8015393699.

The spelling of 131718037 in words is "one hundred thirty-one million, seven hundred eighteen thousand, thirty-seven".