131244 has 12 divisors (see below), whose sum is σ = 306264. Its totient is φ = 43744.

The previous prime is 131231. The next prime is 131249. The reversal of 131244 is 442131.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is not an unprimeable number, because it can be changed into a prime (131249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5457 + ... + 5480.

It is an arithmetic number, because the mean of its divisors is an integer number (25522).

2¹³¹²⁴⁴ is an apocalyptic number.

It is an amenable number.

131244 is an abundant number, since it is smaller than the sum of its proper divisors (175020).

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

131244 is a wasteful number, since it uses less digits than its factorization.

131244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10944 (or 10942 counting only the distinct ones).

The product of its digits is 96, while the sum is 15.

The square root of 131244 is about 362.2761377734. The cubic root of 131244 is about 50.8190434317.

Adding to 131244 its reverse (442131), we get a palindrome (573375).

The spelling of 131244 in words is "one hundred thirty-one thousand, two hundred forty-four".