131917093940 has 24 divisors (see below), whose sum is σ = 277068460032. Its totient is φ = 52758730400.

The previous prime is 131917093939. The next prime is 131917093963. The reversal of 131917093940 is 49390719131.

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, 372404 + ... + 634443.

It is an arithmetic number, because the mean of its divisors is an integer number (11544519168).

Almost surely, 2^131917093940 is an apocalyptic number.

131917093940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131917093940 is an abundant number, since it is smaller than the sum of its proper divisors (145151366092).

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

131917093940 is a wasteful number, since it uses less digits than its factorization.

131917093940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013407 (or 1013405 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 47.

The spelling of 131917093940 in words is "one hundred thirty-one billion, nine hundred seventeen million, ninety-three thousand, nine hundred forty".