131688524 has 24 divisors (see below), whose sum is σ = 262338048. Its totient is φ = 57255440.

The previous prime is 131688509. The next prime is 131688533. The reversal of 131688524 is 425886131.

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, 64052 + ... + 66075.

It is an arithmetic number, because the mean of its divisors is an integer number (10930752).

Almost surely, 2^131688524 is an apocalyptic number.

It is an amenable number.

131688524 is a deficient number, since it is larger than the sum of its proper divisors (130649524).

131688524 is a wasteful number, since it uses less digits than its factorization.

131688524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130165 (or 130163 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 131688524 is about 11475.5620341663. The cubic root of 131688524 is about 508.7635355099.

The spelling of 131688524 in words is "one hundred thirty-one million, six hundred eighty-eight thousand, five hundred twenty-four".