131138292 has 12 divisors (see below), whose sum is σ = 305989376. Its totient is φ = 43712760.

The previous prime is 131138269. The next prime is 131138309. The reversal of 131138292 is 292831131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5464084 + ... + 5464107.

Almost surely, 2^131138292 is an apocalyptic number.

131138292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131138292 is an abundant number, since it is smaller than the sum of its proper divisors (174851084).

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

131138292 is a wasteful number, since it uses less digits than its factorization.

131138292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10928198 (or 10928196 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 131138292 is about 11451.5628627712. The cubic root of 131138292 is about 508.0539602094.

The spelling of 131138292 in words is "one hundred thirty-one million, one hundred thirty-eight thousand, two hundred ninety-two".