131992 has 16 divisors (see below), whose sum is σ = 282960. Its totient is φ = 56544.

The previous prime is 131969. The next prime is 132001. The reversal of 131992 is 299131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123 + ... + 1234.

It is an arithmetic number, because the mean of its divisors is an integer number (17685).

2¹³¹⁹⁹² is an apocalyptic number.

It is an amenable number.

131992 is an abundant number, since it is smaller than the sum of its proper divisors (150968).

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

131992 is a wasteful number, since it uses less digits than its factorization.

131992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370 (or 2366 counting only the distinct ones).

The product of its digits is 486, while the sum is 25.

The square root of 131992 is about 363.3070326872. The cubic root of 131992 is about 50.9154050610.

The spelling of 131992 in words is "one hundred thirty-one thousand, nine hundred ninety-two".