2123106 has 16 divisors (see below), whose sum is σ = 4261248. Its totient is φ = 705200.

The previous prime is 2123087. The next prime is 2123123. The reversal of 2123106 is 6013212.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2176 + ... + 2996.

It is an arithmetic number, because the mean of its divisors is an integer number (266328).

2^2123106 is an apocalyptic number.

2123106 is an abundant number, since it is smaller than the sum of its proper divisors (2138142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123106 is a wasteful number, since it uses less digits than its factorization.

2123106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2123106 is about 1457.0881922519. The cubic root of 2123106 is about 128.5258720433.

Adding to 2123106 its reverse (6013212), we get a palindrome (8136318).

The spelling of 2123106 in words is "two million, one hundred twenty-three thousand, one hundred six".