131135532 has 24 divisors (see below), whose sum is σ = 333799872. Its totient is φ = 39738000.

The previous prime is 131135527. The next prime is 131135539. The reversal of 131135532 is 235531131.

It is not an unprimeable number, because it can be changed into a prime (131135539) 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, 496594 + ... + 496857.

It is an arithmetic number, because the mean of its divisors is an integer number (13908328).

Almost surely, 2^131135532 is an apocalyptic number.

131135532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131135532 is an abundant number, since it is smaller than the sum of its proper divisors (202664340).

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

131135532 is a wasteful number, since it uses less digits than its factorization.

131135532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993469 (or 993467 counting only the distinct ones).

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

The square root of 131135532 is about 11451.4423545683. The cubic root of 131135532 is about 508.0503959345.

Adding to 131135532 its reverse (235531131), we get a palindrome (366666663).

The spelling of 131135532 in words is "one hundred thirty-one million, one hundred thirty-five thousand, five hundred thirty-two".