2116105 has 4 divisors (see below), whose sum is σ = 2539332. Its totient is φ = 1692880.

The previous prime is 2116099. The next prime is 2116117. The reversal of 2116105 is 5016112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1026169 + 1089936 = 1013^2 + 1044^2 .

It is not a de Polignac number, because 2116105 - 2³ = 2116097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211606 + ... + 211615.

It is an arithmetic number, because the mean of its divisors is an integer number (634833).

2^2116105 is an apocalyptic number.

It is an amenable number.

2116105 is a deficient number, since it is larger than the sum of its proper divisors (423227).

2116105 is an equidigital number, since it uses as much as digits as its factorization.

2116105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423226.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 2116105 is about 1454.6838144422. The cubic root of 2116105 is about 128.3844439509.

The spelling of 2116105 in words is "two million, one hundred sixteen thousand, one hundred five".