131998583724 has 96 divisors (see below), whose sum is σ = 373481902080. Its totient is φ = 35421130752.

The previous prime is 131998583659. The next prime is 131998583747. The reversal of 131998583724 is 427385899131.

It is a happy number.

It is a super-2 number, since 2×131998583724² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 587524 + ... + 780500.

It is an arithmetic number, because the mean of its divisors is an integer number (3890436480).

Almost surely, 2^131998583724 is an apocalyptic number.

131998583724 is a gapful number since it is divisible by the number (14) 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 131998583724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186740951040).

131998583724 is an abundant number, since it is smaller than the sum of its proper divisors (241483318356).

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

131998583724 is a wasteful number, since it uses less digits than its factorization.

131998583724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193487 (or 193485 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 60.

The spelling of 131998583724 in words is "one hundred thirty-one billion, nine hundred ninety-eight million, five hundred eighty-three thousand, seven hundred twenty-four".