131889756 has 24 divisors (see below), whose sum is σ = 316061200. Its totient is φ = 42774912.

The previous prime is 131889691. The next prime is 131889781. The reversal of 131889756 is 657988131.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its 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, 148081 + ... + 148968.

Almost surely, 2^131889756 is an apocalyptic number.

It is an amenable number.

131889756 is an abundant number, since it is smaller than the sum of its proper divisors (184171444).

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

131889756 is a wasteful number, since it uses less digits than its factorization.

131889756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297093 (or 297091 counting only the distinct ones).

The product of its digits is 362880, while the sum is 48.

The square root of 131889756 is about 11484.3265366324. The cubic root of 131889756 is about 509.0225492202.

The spelling of 131889756 in words is "one hundred thirty-one million, eight hundred eighty-nine thousand, seven hundred fifty-six".