131433512 has 32 divisors (see below), whose sum is σ = 283221120. Its totient is φ = 56013120.

The previous prime is 131433493. The next prime is 131433517. The reversal of 131433512 is 215334131.

It is not an unprimeable number, because it can be changed into a prime (131433517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3653 + ... + 16619.

It is an arithmetic number, because the mean of its divisors is an integer number (8850660).

Almost surely, 2^131433512 is an apocalyptic number.

It is an amenable number.

131433512 is an abundant number, since it is smaller than the sum of its proper divisors (151787608).

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

131433512 is a wasteful number, since it uses less digits than its factorization.

131433512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13161 (or 13157 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 131433512 is about 11464.4455600783. The cubic root of 131433512 is about 508.4349200777.

Adding to 131433512 its reverse (215334131), we get a palindrome (346767643).

The spelling of 131433512 in words is "one hundred thirty-one million, four hundred thirty-three thousand, five hundred twelve".