131131132 has 24 divisors (see below), whose sum is σ = 265068720. Its totient is φ = 56098560.

The previous prime is 131131129. The next prime is 131131177. The reversal of 131131132 is 231131131.

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, 86907 + ... + 88402.

It is an arithmetic number, because the mean of its divisors is an integer number (11044530).

Almost surely, 2^131131132 is an apocalyptic number.

It is an amenable number.

131131132 is an abundant number, since it is smaller than the sum of its proper divisors (133937588).

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

131131132 is a wasteful number, since it uses less digits than its factorization.

131131132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175341 (or 175339 counting only the distinct ones).

The product of its digits is 54, while the sum is 16.

The square root of 131131132 is about 11451.2502374195. The cubic root of 131131132 is about 508.0447136537.

Adding to 131131132 its reverse (231131131), we get a palindrome (362262263).

Subtracting 131131132 from its reverse (231131131), we obtain a palindrome (99999999).

The spelling of 131131132 in words is "one hundred thirty-one million, one hundred thirty-one thousand, one hundred thirty-two".