131684956 has 12 divisors (see below), whose sum is σ = 248175592. Its totient is φ = 60777648.

The previous prime is 131684947. The next prime is 131684957. The reversal of 131684956 is 659486131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131684957) 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, 1266150 + ... + 1266253.

Almost surely, 2^131684956 is an apocalyptic number.

It is an amenable number.

131684956 is a deficient number, since it is larger than the sum of its proper divisors (116490636).

131684956 is a wasteful number, since it uses less digits than its factorization.

131684956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532420 (or 2532418 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 131684956 is about 11475.4065723180. The cubic root of 131684956 is about 508.7589406152.

The spelling of 131684956 in words is "one hundred thirty-one million, six hundred eighty-four thousand, nine hundred fifty-six".