131242432 has 28 divisors (see below), whose sum is σ = 264855960. Its totient is φ = 64507136.

The previous prime is 131242417. The next prime is 131242453. The reversal of 131242432 is 234242131.

131242432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 13603 + ... + 21154.

Almost surely, 2^131242432 is an apocalyptic number.

It is an amenable number.

131242432 is an abundant number, since it is smaller than the sum of its proper divisors (133613528).

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

131242432 is an equidigital number, since it uses as much as digits as its factorization.

131242432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34828 (or 34818 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 131242432 is about 11456.1089380295. The cubic root of 131242432 is about 508.1884104894.

Adding to 131242432 its reverse (234242131), we get a palindrome (365484563).

The spelling of 131242432 in words is "one hundred thirty-one million, two hundred forty-two thousand, four hundred thirty-two".