131142140 has 24 divisors (see below), whose sum is σ = 280596960. Its totient is φ = 51466688.

The previous prime is 131142127. The next prime is 131142163. The reversal of 131142140 is 41241131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60800 + ... + 62919.

It is an arithmetic number, because the mean of its divisors is an integer number (11691540).

Almost surely, 2^131142140 is an apocalyptic number.

131142140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131142140 is an abundant number, since it is smaller than the sum of its proper divisors (149454820).

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

131142140 is a wasteful number, since it uses less digits than its factorization.

131142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123781 (or 123779 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 131142140 is about 11451.7308735405. The cubic root of 131142140 is about 508.0589294483.

Adding to 131142140 its reverse (41241131), we get a palindrome (172383271).

The spelling of 131142140 in words is "one hundred thirty-one million, one hundred forty-two thousand, one hundred forty".