115531132 has 6 divisors (see below), whose sum is σ = 202179488. Its totient is φ = 57765564.

The previous prime is 115531121. The next prime is 115531147. The reversal of 115531132 is 231135511.

It is a super-2 number, since 2×115531132² = 26694884922402848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14441388 + ... + 14441395.

Almost surely, 2^115531132 is an apocalyptic number.

It is an amenable number.

115531132 is a deficient number, since it is larger than the sum of its proper divisors (86648356).

115531132 is a wasteful number, since it uses less digits than its factorization.

115531132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28882787 (or 28882785 counting only the distinct ones).

The product of its digits is 450, while the sum is 22.

The square root of 115531132 is about 10748.5409242371. The cubic root of 115531132 is about 487.0419200830.

Adding to 115531132 its reverse (231135511), we get a palindrome (346666643).

The spelling of 115531132 in words is "one hundred fifteen million, five hundred thirty-one thousand, one hundred thirty-two".