2205123 has 16 divisors (see below), whose sum is σ = 3075072. Its totient is φ = 1404000.

The previous prime is 2205113. The next prime is 2205139. The reversal of 2205123 is 3215022.

It is not a de Polignac number, because 2205123 - 2⁴ = 2205107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2205113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12093 + ... + 12273.

It is an arithmetic number, because the mean of its divisors is an integer number (192192).

2^2205123 is an apocalyptic number.

2205123 is a deficient number, since it is larger than the sum of its proper divisors (869949).

2205123 is a wasteful number, since it uses less digits than its factorization.

2205123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2205123 is about 1484.9656561685. The cubic root of 2205123 is about 130.1600199096.

The spelling of 2205123 in words is "two million, two hundred five thousand, one hundred twenty-three".