131384320 has 88 divisors (see below), whose sum is σ = 320707584. Its totient is φ = 51634176.

The previous prime is 131384291. The next prime is 131384333. The reversal of 131384320 is 23483131.

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, 342849 + ... + 343231.

Almost surely, 2^131384320 is an apocalyptic number.

131384320 is a gapful number since it is divisible by the number (10) 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 131384320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160353792).

131384320 is an abundant number, since it is smaller than the sum of its proper divisors (189323264).

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

131384320 is an equidigital number, since it uses as much as digits as its factorization.

131384320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 131384320 is about 11462.2999437286. The cubic root of 131384320 is about 508.3714810274.

The spelling of 131384320 in words is "one hundred thirty-one million, three hundred eighty-four thousand, three hundred twenty".