115089 has 12 divisors (see below), whose sum is σ = 166896. Its totient is φ = 70512.

The previous prime is 115079. The next prime is 115099. The reversal of 115089 is 980511.

It is an interprime number because it is at equal distance from previous prime (115079) and next prime (115099).

It is not a de Polignac number, because 115089 - 2⁵ = 115057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 394 + ... + 620.

It is an arithmetic number, because the mean of its divisors is an integer number (13908).

2¹¹⁵⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

115089 is a deficient number, since it is larger than the sum of its proper divisors (51807).

115089 is a wasteful number, since it uses less digits than its factorization.

115089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 115089 is about 339.2476971182. The cubic root of 115089 is about 48.6419830624.

The spelling of 115089 in words is "one hundred fifteen thousand, eighty-nine".