131597499340 has 24 divisors (see below), whose sum is σ = 276688142640. Its totient is φ = 52575496128.

The previous prime is 131597499337. The next prime is 131597499373. The reversal of 131597499340 is 43994795131.

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, 3951982 + ... + 3985141.

It is an arithmetic number, because the mean of its divisors is an integer number (11528672610).

Almost surely, 2^131597499340 is an apocalyptic number.

131597499340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131597499340 is an abundant number, since it is smaller than the sum of its proper divisors (145090643300).

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

131597499340 is a wasteful number, since it uses less digits than its factorization.

131597499340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7937961 (or 7937959 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 55.

The spelling of 131597499340 in words is "one hundred thirty-one billion, five hundred ninety-seven million, four hundred ninety-nine thousand, three hundred forty".