115817 has 8 divisors (see below), whose sum is σ = 127680. Its totient is φ = 104400.

The previous prime is 115811. The next prime is 115823. The reversal of 115817 is 718511.

It is an interprime number because it is at equal distance from previous prime (115811) and next prime (115823).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115817 - 2⁸ = 115561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115792 and 115801.

It is not an unprimeable number, because it can be changed into a prime (115811) 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, 692 + ... + 842.

It is an arithmetic number, because the mean of its divisors is an integer number (15960).

2¹¹⁵⁸¹⁷ is an apocalyptic number.

It is an amenable number.

115817 is a deficient number, since it is larger than the sum of its proper divisors (11863).

115817 is a wasteful number, since it uses less digits than its factorization.

115817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223.

The product of its digits is 280, while the sum is 23.

The square root of 115817 is about 340.3189680285. The cubic root of 115817 is about 48.7443298249.

The spelling of 115817 in words is "one hundred fifteen thousand, eight hundred seventeen".