115909823 has 4 divisors (see below), whose sum is σ = 122010360. Its totient is φ = 109809288.

The previous prime is 115909813. The next prime is 115909841. The reversal of 115909823 is 328909511.

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 115909823 - 2¹⁴ = 115893439 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 (115909813) 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, 3050240 + ... + 3050277.

It is an arithmetic number, because the mean of its divisors is an integer number (30502590).

Almost surely, 2^115909823 is an apocalyptic number.

115909823 is a deficient number, since it is larger than the sum of its proper divisors (6100537).

115909823 is an equidigital number, since it uses as much as digits as its factorization.

115909823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100536.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 115909823 is about 10766.1424382181. The cubic root of 115909823 is about 487.5734860074.

The spelling of 115909823 in words is "one hundred fifteen million, nine hundred nine thousand, eight hundred twenty-three".