131557947192 has 192 divisors, whose sum is σ = 441184423680. Its totient is φ = 34554110976.

The previous prime is 131557947187. The next prime is 131557947203. The reversal of 131557947192 is 291749755131.

131557947192 is a `hidden beast` number, since 1 + 3 + 15 + 5 + 79 + 471 + 92 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189883 + ... + 546965.

It is an arithmetic number, because the mean of its divisors is an integer number (2297835540).

Almost surely, 2^131557947192 is an apocalyptic number.

131557947192 is a gapful number since it is divisible by the number (12) 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 131557947192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220592211840).

131557947192 is an abundant number, since it is smaller than the sum of its proper divisors (309626476488).

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

131557947192 is a wasteful number, since it uses less digits than its factorization.

131557947192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357162 (or 357155 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 54.

The spelling of 131557947192 in words is "one hundred thirty-one billion, five hundred fifty-seven million, nine hundred forty-seven thousand, one hundred ninety-two".