115113132 has 18 divisors (see below), whose sum is σ = 290980508. Its totient is φ = 38371032.

The previous prime is 115113121. The next prime is 115113133. The reversal of 115113132 is 231311511.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (115113133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1598758 + ... + 1598829.

Almost surely, 2^115113132 is an apocalyptic number.

115113132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115113132 is an abundant number, since it is smaller than the sum of its proper divisors (175867376).

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

115113132 is a wasteful number, since it uses less digits than its factorization.

115113132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197597 (or 3197592 counting only the distinct ones).

The product of its digits is 90, while the sum is 18.

The square root of 115113132 is about 10729.0788048182. The cubic root of 115113132 is about 486.4538259465.

Adding to 115113132 its reverse (231311511), we get a palindrome (346424643).

The spelling of 115113132 in words is "one hundred fifteen million, one hundred thirteen thousand, one hundred thirty-two".