115853819 has 4 divisors (see below), whose sum is σ = 116315640. Its totient is φ = 115392000.

The previous prime is 115853809. The next prime is 115853833. The reversal of 115853819 is 918358511.

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 115853819 - 2²⁴ = 99076603 is a prime.

It is a super-2 number, since 2×115853819² = 26844214753769522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115853809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230534 + ... + 231035.

It is an arithmetic number, because the mean of its divisors is an integer number (29078910).

Almost surely, 2^115853819 is an apocalyptic number.

115853819 is a deficient number, since it is larger than the sum of its proper divisors (461821).

115853819 is an equidigital number, since it uses as much as digits as its factorization.

115853819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461820.

The product of its digits is 43200, while the sum is 41.

The square root of 115853819 is about 10763.5411923772. The cubic root of 115853819 is about 487.4949466055.

The spelling of 115853819 in words is "one hundred fifteen million, eight hundred fifty-three thousand, eight hundred nineteen".