131803992 has 96 divisors (see below), whose sum is σ = 380343600. Its totient is φ = 41091072.

The previous prime is 131803979. The next prime is 131804017. The reversal of 131803992 is 299308131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314359 + ... + 314777.

Almost surely, 2^131803992 is an apocalyptic number.

131803992 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 131803992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190171800).

131803992 is an abundant number, since it is smaller than the sum of its proper divisors (248539608).

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

131803992 is a wasteful number, since it uses less digits than its factorization.

131803992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 131803992 is about 11480.5919708001. The cubic root of 131803992 is about 508.9121912026.

It can be divided in two parts, 1318039 and 92, that added together give a palindrome (1318131).

The spelling of 131803992 in words is "one hundred thirty-one million, eight hundred three thousand, nine hundred ninety-two".