115823 has 2 divisors, whose sum is σ = 115824. Its totient is φ = 115822.

The previous prime is 115811. The next prime is 115831. The reversal of 115823 is 328511.

It is a strong prime.

It is an emirp because it is prime and its reverse (328511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115823 - 2⁴ = 115807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115795 and 115804.

It is a congruent number.

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, 57911 + 57912.

It is an arithmetic number, because the mean of its divisors is an integer number (57912).

2¹¹⁵⁸²³ is an apocalyptic number.

115823 is a deficient number, since it is larger than the sum of its proper divisors (1).

115823 is an equidigital number, since it uses as much as digits as its factorization.

115823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240, while the sum is 20.

The square root of 115823 is about 340.3277831738. The cubic root of 115823 is about 48.7451715577.

The spelling of 115823 in words is "one hundred fifteen thousand, eight hundred twenty-three".