4205105 has 4 divisors (see below), whose sum is σ = 5046132. Its totient is φ = 3364080.

The previous prime is 4205093. The next prime is 4205129. The reversal of 4205105 is 5015024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3073009 + 1132096 = 1753^2 + 1064^2 .

It is not a de Polignac number, because 4205105 - 2⁶ = 4205041 is a prime.

It is a super-2 number, since 2×4205105² = 35365816122050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420506 + ... + 420515.

It is an arithmetic number, because the mean of its divisors is an integer number (1261533).

Almost surely, 2^4205105 is an apocalyptic number.

It is an amenable number.

4205105 is a deficient number, since it is larger than the sum of its proper divisors (841027).

4205105 is an equidigital number, since it uses as much as digits as its factorization.

4205105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841026.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 4205105 is about 2050.6352674232. The cubic root of 4205105 is about 161.4082076055.

The spelling of 4205105 in words is "four million, two hundred five thousand, one hundred five".