131434432 has 28 divisors (see below), whose sum is σ = 262078216. Its totient is φ = 65399040.

The previous prime is 131434421. The next prime is 131434441. The reversal of 131434432 is 234434131.

It is a junction number, because it is equal to n+sod(n) for n = 131434397 and 131434406.

It is a congruent number.

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, 8638 + ... + 18370.

Almost surely, 2^131434432 is an apocalyptic number.

It is an amenable number.

131434432 is a deficient number, since it is larger than the sum of its proper divisors (130643784).

131434432 is an equidigital number, since it uses as much as digits as its factorization.

131434432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9956 (or 9946 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 131434432 is about 11464.4856840593. The cubic root of 131434432 is about 508.4361063785.

Adding to 131434432 its reverse (234434131), we get a palindrome (365868563).

The spelling of 131434432 in words is "one hundred thirty-one million, four hundred thirty-four thousand, four hundred thirty-two".