131535132 has 24 divisors (see below), whose sum is σ = 308802816. Its totient is φ = 43575408.

The previous prime is 131535121. The next prime is 131535133. The reversal of 131535132 is 231535131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131535133) 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, 31668 + ... + 35579.

It is an arithmetic number, because the mean of its divisors is an integer number (12866784).

Almost surely, 2^131535132 is an apocalyptic number.

131535132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131535132 is an abundant number, since it is smaller than the sum of its proper divisors (177267684).

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

131535132 is a wasteful number, since it uses less digits than its factorization.

131535132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67417 (or 67415 counting only the distinct ones).

The product of its digits is 1350, while the sum is 24.

The square root of 131535132 is about 11468.8766668754. The cubic root of 131535132 is about 508.5659212857.

Subtracting 131535132 from its reverse (231535131), we obtain a palindrome (99999999).

The spelling of 131535132 in words is "one hundred thirty-one million, five hundred thirty-five thousand, one hundred thirty-two".