131443244 has 12 divisors (see below), whose sum is σ = 232259664. Its totient is φ = 65083344.

The previous prime is 131443241. The next prime is 131443259. The reversal of 131443244 is 442344131.

It is not an unprimeable number, because it can be changed into a prime (131443241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159107 + ... + 159930.

It is an arithmetic number, because the mean of its divisors is an integer number (19354972).

Almost surely, 2^131443244 is an apocalyptic number.

It is an amenable number.

131443244 is a deficient number, since it is larger than the sum of its proper divisors (100816420).

131443244 is a wasteful number, since it uses less digits than its factorization.

131443244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319144 (or 319142 counting only the distinct ones).

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

The square root of 131443244 is about 11464.8699949018. The cubic root of 131443244 is about 508.4474687964.

Adding to 131443244 its reverse (442344131), we get a palindrome (573787375).

The spelling of 131443244 in words is "one hundred thirty-one million, four hundred forty-three thousand, two hundred forty-four".