131324388 has 96 divisors (see below), whose sum is σ = 364766976. Its totient is φ = 36360192.

The previous prime is 131324387. The next prime is 131324423. The reversal of 131324388 is 883423131.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (131324381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59920 + ... + 62072.

It is an arithmetic number, because the mean of its divisors is an integer number (3799656).

Almost surely, 2^131324388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131324388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182383488).

131324388 is an abundant number, since it is smaller than the sum of its proper divisors (233442588).

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

131324388 is a wasteful number, since it uses less digits than its factorization.

131324388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213 (or 2211 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 131324388 is about 11459.6853359942. The cubic root of 131324388 is about 508.2941700426.

The spelling of 131324388 in words is "one hundred thirty-one million, three hundred twenty-four thousand, three hundred eighty-eight".