115289232 has 40 divisors (see below), whose sum is σ = 302034240. Its totient is φ = 37887360.

The previous prime is 115289227. The next prime is 115289233. The reversal of 115289232 is 232982511.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 115289193 and 115289202.

It is not an unprimeable number, because it can be changed into a prime (115289233) 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, 13507 + ... + 20322.

It is an arithmetic number, because the mean of its divisors is an integer number (7550856).

Almost surely, 2^115289232 is an apocalyptic number.

115289232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115289232 is an abundant number, since it is smaller than the sum of its proper divisors (186745008).

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

115289232 is a wasteful number, since it uses less digits than its factorization.

115289232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33911 (or 33905 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 115289232 is about 10737.2823377240. The cubic root of 115289232 is about 486.7017584837.

The spelling of 115289232 in words is "one hundred fifteen million, two hundred eighty-nine thousand, two hundred thirty-two".