2105206 has 8 divisors (see below), whose sum is σ = 3193560. Its totient is φ = 1040688.

The previous prime is 2105203. The next prime is 2105209. The reversal of 2105206 is 6025012.

It is a happy number.

2105206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2105203) and next prime (2105209).

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2105206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105203) 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 3 ways as a sum of consecutive naturals, for example, 5736 + ... + 6091.

It is an arithmetic number, because the mean of its divisors is an integer number (399195).

2^2105206 is an apocalyptic number.

2105206 is a deficient number, since it is larger than the sum of its proper divisors (1088354).

2105206 is a wasteful number, since it uses less digits than its factorization.

2105206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11918.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2105206 is about 1450.9328034061. The cubic root of 2105206 is about 128.1636497319.

The spelling of 2105206 in words is "two million, one hundred five thousand, two hundred six".