12065605 has 8 divisors (see below), whose sum is σ = 14787072. Its totient is φ = 9446928.

The previous prime is 12065579. The next prime is 12065621. The reversal of 12065605 is 50656021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12065605 - 2⁷ = 12065477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12065605.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25437 + ... + 25906.

It is an arithmetic number, because the mean of its divisors is an integer number (1848384).

Almost surely, 2^12065605 is an apocalyptic number.

It is an amenable number.

12065605 is a deficient number, since it is larger than the sum of its proper divisors (2721467).

12065605 is an equidigital number, since it uses as much as digits as its factorization.

12065605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51395.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 12065605 is about 3473.5579741815. The cubic root of 12065605 is about 229.3593070362.

The spelling of 12065605 in words is "twelve million, sixty-five thousand, six hundred five".