131716857 has 16 divisors (see below), whose sum is σ = 178606080. Its totient is φ = 86326800.

The previous prime is 131716853. The next prime is 131716859. The reversal of 131716857 is 758617131.

It is not a de Polignac number, because 131716857 - 2² = 131716853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131716853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101382 + ... + 102672.

It is an arithmetic number, because the mean of its divisors is an integer number (11162880).

Almost surely, 2^131716857 is an apocalyptic number.

It is an amenable number.

131716857 is a deficient number, since it is larger than the sum of its proper divisors (46889223).

131716857 is a wasteful number, since it uses less digits than its factorization.

131716857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844.

The product of its digits is 35280, while the sum is 39.

The square root of 131716857 is about 11476.7964606854. The cubic root of 131716857 is about 508.8000199940.

The spelling of 131716857 in words is "one hundred thirty-one million, seven hundred sixteen thousand, eight hundred fifty-seven".