131442860 has 12 divisors (see below), whose sum is σ = 276030048. Its totient is φ = 52577136.

The previous prime is 131442799. The next prime is 131442881. The reversal of 131442860 is 68244131.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3286052 + ... + 3286091.

It is an arithmetic number, because the mean of its divisors is an integer number (23002504).

Almost surely, 2^131442860 is an apocalyptic number.

131442860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131442860 is an abundant number, since it is smaller than the sum of its proper divisors (144587188).

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

131442860 is a wasteful number, since it uses less digits than its factorization.

131442860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6572152 (or 6572150 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 131442860 is about 11464.8532480795. The cubic root of 131442860 is about 508.4469736676.

Adding to 131442860 its reverse (68244131), we get a palindrome (199686991).

The spelling of 131442860 in words is "one hundred thirty-one million, four hundred forty-two thousand, eight hundred sixty".