2199105 has 12 divisors (see below), whose sum is σ = 3811860. Its totient is φ = 1172832.

The previous prime is 2199077. The next prime is 2199121. The reversal of 2199105 is 5019912.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 641601 + 1557504 = 801^2 + 1248^2 .

It is not a de Polignac number, because 2199105 - 2¹² = 2195009 is a prime.

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24390 + ... + 24479.

It is an arithmetic number, because the mean of its divisors is an integer number (317655).

2^2199105 is an apocalyptic number.

It is an amenable number.

2199105 is a deficient number, since it is larger than the sum of its proper divisors (1612755).

2199105 is a wasteful number, since it uses less digits than its factorization.

2199105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48880 (or 48877 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 2199105 is about 1482.9379622897. The cubic root of 2199105 is about 130.0415054847.

It can be divided in two parts, 2199 and 105, that added together give a square (2304 = 48²).

The spelling of 2199105 in words is "two million, one hundred ninety-nine thousand, one hundred five".