131535232 has 32 divisors (see below), whose sum is σ = 270504000. Its totient is φ = 63644160.

The previous prime is 131535221. The next prime is 131535247. The reversal of 131535232 is 232535131.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 131535197 and 131535206.

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, 12607 + ... + 20542.

It is an arithmetic number, because the mean of its divisors is an integer number (8453250).

Almost surely, 2^131535232 is an apocalyptic number.

It is an amenable number.

131535232 is an abundant number, since it is smaller than the sum of its proper divisors (138968768).

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

131535232 is an equidigital number, since it uses as much as digits as its factorization.

131535232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33194 (or 33182 counting only the distinct ones).

The product of its digits is 2700, while the sum is 25.

The square root of 131535232 is about 11468.8810264995. The cubic root of 131535232 is about 508.5660501653.

The spelling of 131535232 in words is "one hundred thirty-one million, five hundred thirty-five thousand, two hundred thirty-two".