131257188140 has 96 divisors (see below), whose sum is σ = 314039040000. Its totient is φ = 45682382592.

The previous prime is 131257188131. The next prime is 131257188169. The reversal of 131257188140 is 41881752131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 916301 + ... + 1049819.

It is an arithmetic number, because the mean of its divisors is an integer number (3271240000).

Almost surely, 2^131257188140 is an apocalyptic number.

131257188140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131257188140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157019520000).

131257188140 is an abundant number, since it is smaller than the sum of its proper divisors (182781851860).

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

131257188140 is a wasteful number, since it uses less digits than its factorization.

131257188140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133759 (or 133757 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 41.

The spelling of 131257188140 in words is "one hundred thirty-one billion, two hundred fifty-seven million, one hundred eighty-eight thousand, one hundred forty".