131424424 has 16 divisors (see below), whose sum is σ = 248603220. Its totient is φ = 65130240.

The previous prime is 131424421. The next prime is 131424437. The reversal of 131424424 is 424424131.

It can be written as a sum of positive squares in 2 ways, for example, as 105719524 + 25704900 = 10282^2 + 5070^2 .

It is not an unprimeable number, because it can be changed into a prime (131424421) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 71787 + ... + 73594.

Almost surely, 2^131424424 is an apocalyptic number.

It is an amenable number.

131424424 is a deficient number, since it is larger than the sum of its proper divisors (117178796).

131424424 is a wasteful number, since it uses less digits than its factorization.

131424424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145500 (or 145496 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 131424424 is about 11464.0491973822. The cubic root of 131424424 is about 508.4232011916.

Adding to 131424424 its reverse (424424131), we get a palindrome (555848555).

The spelling of 131424424 in words is "one hundred thirty-one million, four hundred twenty-four thousand, four hundred twenty-four".