131032424 has 16 divisors (see below), whose sum is σ = 246103620. Its totient is φ = 65404800.

The previous prime is 131032393. The next prime is 131032441. The reversal of 131032424 is 424230131.

It can be written as a sum of positive squares in 2 ways, for example, as 126112900 + 4919524 = 11230^2 + 2218^2 .

It is a super-2 number, since 2×131032424² = 34338992278631552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131032396 and 131032405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8819 + ... + 18434.

Almost surely, 2^131032424 is an apocalyptic number.

It is an amenable number.

131032424 is a deficient number, since it is larger than the sum of its proper divisors (115071196).

131032424 is a wasteful number, since it uses less digits than its factorization.

131032424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27860 (or 27856 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 131032424 is about 11446.9395036403. The cubic root of 131032424 is about 507.9172060080.

Adding to 131032424 its reverse (424230131), we get a palindrome (555262555).

The spelling of 131032424 in words is "one hundred thirty-one million, thirty-two thousand, four hundred twenty-four".