131641344 has 78 divisors (see below), whose sum is σ = 380357276. Its totient is φ = 43868160.

The previous prime is 131641333. The next prime is 131641357. The reversal of 131641344 is 443146131.

131641344 is a `hidden beast` number, since 1 + 316 + 4 + 1 + 344 = 666.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35079 + ... + 38649.

Almost surely, 2^131641344 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 131641344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190178638).

131641344 is an abundant number, since it is smaller than the sum of its proper divisors (248715932).

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

131641344 is an equidigital number, since it uses as much as digits as its factorization.

131641344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601 (or 3576 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 131641344 is about 11473.5061772764. The cubic root of 131641344 is about 508.7027700764.

Adding to 131641344 its reverse (443146131), we get a palindrome (574787475).

The spelling of 131641344 in words is "one hundred thirty-one million, six hundred forty-one thousand, three hundred forty-four".