12668205 has 16 divisors (see below), whose sum is σ = 22112064. Its totient is φ = 6142080.

The previous prime is 12668191. The next prime is 12668209. The reversal of 12668205 is 50286621.

It is not a de Polignac number, because 12668205 - 2¹² = 12664109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668209) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 38224 + ... + 38553.

It is an arithmetic number, because the mean of its divisors is an integer number (1382004).

Almost surely, 2^12668205 is an apocalyptic number.

12668205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12668205 is a deficient number, since it is larger than the sum of its proper divisors (9443859).

12668205 is a wasteful number, since it uses less digits than its factorization.

12668205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76796.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 12668205 is about 3559.2421946251. The cubic root of 12668205 is about 233.1157915752.

The spelling of 12668205 in words is "twelve million, six hundred sixty-eight thousand, two hundred five".