131343224 has 16 divisors (see below), whose sum is σ = 260755200. Its totient is φ = 61808512.

The previous prime is 131343221. The next prime is 131343227. The reversal of 131343224 is 422343131.

It is an interprime number because it is at equal distance from previous prime (131343221) and next prime (131343227).

It is a self number, because there is not a number n which added to its sum of digits gives 131343224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131343221) 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, 482744 + ... + 483015.

It is an arithmetic number, because the mean of its divisors is an integer number (16297200).

Almost surely, 2^131343224 is an apocalyptic number.

It is an amenable number.

131343224 is a deficient number, since it is larger than the sum of its proper divisors (129411976).

131343224 is a wasteful number, since it uses less digits than its factorization.

131343224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965782 (or 965778 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 131343224 is about 11460.5071441014. The cubic root of 131343224 is about 508.3184706097.

Adding to 131343224 its reverse (422343131), we get a palindrome (553686355).

The spelling of 131343224 in words is "one hundred thirty-one million, three hundred forty-three thousand, two hundred twenty-four".