131019996 has 24 divisors (see below), whose sum is σ = 306406800. Its totient is φ = 43574272.

The previous prime is 131019979. The next prime is 131020007. The reversal of 131019996 is 699910131.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 6771 + ... + 17546.

It is an arithmetic number, because the mean of its divisors is an integer number (12766950).

Almost surely, 2^131019996 is an apocalyptic number.

It is an amenable number.

131019996 is an abundant number, since it is smaller than the sum of its proper divisors (175386804).

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

131019996 is a wasteful number, since it uses less digits than its factorization.

131019996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24773 (or 24771 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 39.

The square root of 131019996 is about 11446.3966382438. The cubic root of 131019996 is about 507.9011474010.

The spelling of 131019996 in words is "one hundred thirty-one million, nineteen thousand, nine hundred ninety-six".