131533432 has 16 divisors (see below), whose sum is σ = 248509800. Its totient is φ = 65264160.

The previous prime is 131533429. The next prime is 131533433. The reversal of 131533432 is 234335131.

It is a junction number, because it is equal to n+sod(n) for n = 131533397 and 131533406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131533433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61707 + ... + 63802.

Almost surely, 2^131533432 is an apocalyptic number.

It is an amenable number.

131533432 is a deficient number, since it is larger than the sum of its proper divisors (116976368).

131533432 is a wasteful number, since it uses less digits than its factorization.

131533432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125646 (or 125642 counting only the distinct ones).

The product of its digits is 3240, while the sum is 25.

The square root of 131533432 is about 11468.8025530131. The cubic root of 131533432 is about 508.5637303228.

Adding to 131533432 its reverse (234335131), we get a palindrome (365868563).

The spelling of 131533432 in words is "one hundred thirty-one million, five hundred thirty-three thousand, four hundred thirty-two".