2115843 has 8 divisors (see below), whose sum is σ = 2912256. Its totient is φ = 1365000.

The previous prime is 2115829. The next prime is 2115847. The reversal of 2115843 is 3485112.

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

It is not a de Polignac number, because 2115843 - 2⁹ = 2115331 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2115847) 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, 11283 + ... + 11468.

It is an arithmetic number, because the mean of its divisors is an integer number (364032).

2^2115843 is an apocalyptic number.

2115843 is a deficient number, since it is larger than the sum of its proper divisors (796413).

2115843 is a wasteful number, since it uses less digits than its factorization.

2115843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22785.

The product of its digits is 960, while the sum is 24.

The square root of 2115843 is about 1454.5937577207. The cubic root of 2115843 is about 128.3791452043.

The spelling of 2115843 in words is "two million, one hundred fifteen thousand, eight hundred forty-three".