12065305 has 16 divisors (see below), whose sum is σ = 17118720. Its totient is φ = 7987392.

The previous prime is 12065303. The next prime is 12065309. The reversal of 12065305 is 50356021.

It is a happy number.

It is not a de Polignac number, because 12065305 - 2¹ = 12065303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12065303) 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, 4929 + ... + 6958.

It is an arithmetic number, because the mean of its divisors is an integer number (1069920).

Almost surely, 2^12065305 is an apocalyptic number.

It is an amenable number.

12065305 is a deficient number, since it is larger than the sum of its proper divisors (5053415).

12065305 is a wasteful number, since it uses less digits than its factorization.

12065305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11928.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 12065305 is about 3473.5147905256. The cubic root of 12065305 is about 229.3574060854.

The spelling of 12065305 in words is "twelve million, sixty-five thousand, three hundred five".