131549884 has 12 divisors (see below), whose sum is σ = 230295744. Its totient is φ = 65751104.

The previous prime is 131549879. The next prime is 131549897. The reversal of 131549884 is 488945131.

It is a self number, because there is not a number n which added to its sum of digits gives 131549884.

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, 13557 + ... + 21139.

It is an arithmetic number, because the mean of its divisors is an integer number (19191312).

Almost surely, 2^131549884 is an apocalyptic number.

It is an amenable number.

131549884 is a deficient number, since it is larger than the sum of its proper divisors (98745860).

131549884 is a wasteful number, since it uses less digits than its factorization.

131549884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11924 (or 11922 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 131549884 is about 11469.5197807057. The cubic root of 131549884 is about 508.5849328960.

The spelling of 131549884 in words is "one hundred thirty-one million, five hundred forty-nine thousand, eight hundred eighty-four".