131567996 has 12 divisors (see below), whose sum is σ = 263136048. Its totient is φ = 56386272.

The previous prime is 131567971. The next prime is 131568001. The reversal of 131567996 is 699765131.

It is a happy number.

131567996 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 131567996.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2349401 + ... + 2349456.

It is an arithmetic number, because the mean of its divisors is an integer number (21928004).

Almost surely, 2^131567996 is an apocalyptic number.

It is an amenable number.

131567996 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131567996 is a wasteful number, since it uses less digits than its factorization.

131567996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4698868 (or 4698866 counting only the distinct ones).

The product of its digits is 306180, while the sum is 47.

The square root of 131567996 is about 11470.3093245126. The cubic root of 131567996 is about 508.6082727559.

The spelling of 131567996 in words is "one hundred thirty-one million, five hundred sixty-seven thousand, nine hundred ninety-six".