2105210 has 16 divisors (see below), whose sum is σ = 3912192. Its totient is φ = 814800.

The previous prime is 2105209. The next prime is 2105231. The reversal of 2105210 is 125012.

2105210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2105191 and 2105200.

It is an unprimeable number.

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, 3086 + ... + 3705.

It is an arithmetic number, because the mean of its divisors is an integer number (244512).

2^2105210 is an apocalyptic number.

2105210 is a deficient number, since it is larger than the sum of its proper divisors (1806982).

2105210 is a wasteful number, since it uses less digits than its factorization.

2105210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6829.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 2105210 is about 1450.9341818291. The cubic root of 2105210 is about 128.1637309044.

The spelling of 2105210 in words is "two million, one hundred five thousand, two hundred ten".