115559 has 4 divisors (see below), whose sum is σ = 117216. Its totient is φ = 113904.

The previous prime is 115553. The next prime is 115561. The reversal of 115559 is 955511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115559 - 2⁸ = 115303 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719 + ... + 864.

It is an arithmetic number, because the mean of its divisors is an integer number (29304).

2¹¹⁵⁵⁵⁹ is an apocalyptic number.

115559 is a deficient number, since it is larger than the sum of its proper divisors (1657).

115559 is an equidigital number, since it uses as much as digits as its factorization.

115559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656.

The product of its digits is 1125, while the sum is 26.

The square root of 115559 is about 339.9397005353. The cubic root of 115559 is about 48.7081077762.

The spelling of 115559 in words is "one hundred fifteen thousand, five hundred fifty-nine".