12066305 has 4 divisors (see below), whose sum is σ = 14479572. Its totient is φ = 9653040.

The previous prime is 12066293. The next prime is 12066331. The reversal of 12066305 is 50366021.

12066305 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7789681 + 4276624 = 2791^2 + 2068^2 .

It is not a de Polignac number, because 12066305 - 2⁴ = 12066289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1206626 + ... + 1206635.

It is an arithmetic number, because the mean of its divisors is an integer number (3619893).

Almost surely, 2^12066305 is an apocalyptic number.

It is an amenable number.

12066305 is a deficient number, since it is larger than the sum of its proper divisors (2413267).

12066305 is an equidigital number, since it uses as much as digits as its factorization.

12066305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413266.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 12066305 is about 3473.6587339576. The cubic root of 12066305 is about 229.3637424654.

Adding to 12066305 its sum of digits (23), we get a triangular number (12066328 = T₄₉₁₂).

The spelling of 12066305 in words is "twelve million, sixty-six thousand, three hundred five".