115859 has 2 divisors, whose sum is σ = 115860. Its totient is φ = 115858.

The previous prime is 115853. The next prime is 115861. The reversal of 115859 is 958511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115859 - 2⁸ = 115603 is a prime.

It is a Sophie Germain prime.

Together with 115861, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (115853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57929 + 57930.

It is an arithmetic number, because the mean of its divisors is an integer number (57930).

2¹¹⁵⁸⁵⁹ is an apocalyptic number.

115859 is a deficient number, since it is larger than the sum of its proper divisors (1).

115859 is an equidigital number, since it uses as much as digits as its factorization.

115859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 29.

The square root of 115859 is about 340.3806692514. The cubic root of 115859 is about 48.7502213446.

The spelling of 115859 in words is "one hundred fifteen thousand, eight hundred fifty-nine".