131244344 has 72 divisors (see below), whose sum is σ = 314763120. Its totient is φ = 51115680.

The previous prime is 131244329. The next prime is 131244361. The reversal of 131244344 is 443442131.

131244344 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46049 + ... + 48815.

It is an arithmetic number, because the mean of its divisors is an integer number (4371710).

Almost surely, 2^131244344 is an apocalyptic number.

131244344 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 131244344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157381560).

131244344 is an abundant number, since it is smaller than the sum of its proper divisors (183518776).

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

131244344 is a wasteful number, since it uses less digits than its factorization.

131244344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809 (or 2787 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 131244344 is about 11456.1923866527. The cubic root of 131244344 is about 508.1908783181.

Adding to 131244344 its reverse (443442131), we get a palindrome (574686475).

The spelling of 131244344 in words is "one hundred thirty-one million, two hundred forty-four thousand, three hundred forty-four".