131996 has 6 divisors (see below), whose sum is σ = 231000. Its totient is φ = 65996.

The previous prime is 131969. The next prime is 132001. The reversal of 131996 is 699131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16496 + ... + 16503.

It is an arithmetic number, because the mean of its divisors is an integer number (38500).

2¹³¹⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

131996 is a deficient number, since it is larger than the sum of its proper divisors (99004).

131996 is a wasteful number, since it uses less digits than its factorization.

131996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33003 (or 33001 counting only the distinct ones).

The product of its digits is 1458, while the sum is 29.

The square root of 131996 is about 363.3125376312. The cubic root of 131996 is about 50.9159193840.

The spelling of 131996 in words is "one hundred thirty-one thousand, nine hundred ninety-six".