131685696 has 56 divisors (see below), whose sum is σ = 387136640. Its totient is φ = 43894656.

The previous prime is 131685683. The next prime is 131685703. The reversal of 131685696 is 696586131.

It is a super-3 number, since 3×131685696³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 36376 + ... + 39831.

Almost surely, 2^131685696 is an apocalyptic number.

131685696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131685696 is an abundant number, since it is smaller than the sum of its proper divisors (255450944).

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

131685696 is an equidigital number, since it uses as much as digits as its factorization.

131685696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76228 (or 76212 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 131685696 is about 11475.4388151391. The cubic root of 131685696 is about 508.7598935991.

The spelling of 131685696 in words is "one hundred thirty-one million, six hundred eighty-five thousand, six hundred ninety-six".