115866359 has 4 divisors (see below), whose sum is σ = 132418704. Its totient is φ = 99314016.

The previous prime is 115866349. The next prime is 115866371. The reversal of 115866359 is 953668511.

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 115866359 - 2⁴ = 115866343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115866319) 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, 8276162 + ... + 8276175.

It is an arithmetic number, because the mean of its divisors is an integer number (33104676).

Almost surely, 2^115866359 is an apocalyptic number.

115866359 is a deficient number, since it is larger than the sum of its proper divisors (16552345).

115866359 is an equidigital number, since it uses as much as digits as its factorization.

115866359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16552344.

The product of its digits is 194400, while the sum is 44.

The square root of 115866359 is about 10764.1236986575. The cubic root of 115866359 is about 487.5125347643.

The spelling of 115866359 in words is "one hundred fifteen million, eight hundred sixty-six thousand, three hundred fifty-nine".