131683908 has 72 divisors (see below), whose sum is σ = 334760160. Its totient is φ = 40176000.

The previous prime is 131683883. The next prime is 131683919. The reversal of 131683908 is 809386131.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218808 + ... + 219408.

Almost surely, 2^131683908 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131683908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167380080).

131683908 is an abundant number, since it is smaller than the sum of its proper divisors (203076252).

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

131683908 is a wasteful number, since it uses less digits than its factorization.

131683908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 131683908 is about 11475.3609093571. The cubic root of 131683908 is about 508.7575909779.

The spelling of 131683908 in words is "one hundred thirty-one million, six hundred eighty-three thousand, nine hundred eight".