2109115 has 8 divisors (see below), whose sum is σ = 2550240. Its totient is φ = 1674432.

The previous prime is 2109109. The next prime is 2109119. The reversal of 2109115 is 5119012.

2109115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2109115 - 2⁷ = 2108987 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2109092 and 2109101.

It is not an unprimeable number, because it can be changed into a prime (2109119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855 + ... + 2224.

It is an arithmetic number, because the mean of its divisors is an integer number (318780).

2^2109115 is an apocalyptic number.

2109115 is a deficient number, since it is larger than the sum of its proper divisors (441125).

2109115 is a wasteful number, since it uses less digits than its factorization.

2109115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 2109115 is about 1452.2792431210. The cubic root of 2109115 is about 128.2429265250.

The spelling of 2109115 in words is "two million, one hundred nine thousand, one hundred fifteen".