4212005 has 16 divisors (see below), whose sum is σ = 6117120. Its totient is φ = 2717952.

The previous prime is 4211993. The next prime is 4212023. The reversal of 4212005 is 5002124.

It is a cyclic number.

It is not a de Polignac number, because 4212005 - 2¹⁰ = 4210981 is a prime.

It is a super-2 number, since 2×4212005² = 35481972240050, which contains 22 as substring.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 2945 + ... + 4134.

It is an arithmetic number, because the mean of its divisors is an integer number (382320).

Almost surely, 2^4212005 is an apocalyptic number.

It is an amenable number.

4212005 is a deficient number, since it is larger than the sum of its proper divisors (1905115).

4212005 is a wasteful number, since it uses less digits than its factorization.

4212005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7108.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 4212005 is about 2052.3169833142. The cubic root of 4212005 is about 161.4964422659.

Adding to 4212005 its reverse (5002124), we get a palindrome (9214129).

The spelling of 4212005 in words is "four million, two hundred twelve thousand, five".