12083605 has 4 divisors (see below), whose sum is σ = 14500332. Its totient is φ = 9666880.

The previous prime is 12083597. The next prime is 12083609. The reversal of 12083605 is 50638021.

It is a happy number.

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 2634129 + 9449476 = 1623^2 + 3074^2 .

It is not a de Polignac number, because 12083605 - 2³ = 12083597 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 12083605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12083609) 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 3 ways as a sum of consecutive naturals, for example, 1208356 + ... + 1208365.

It is an arithmetic number, because the mean of its divisors is an integer number (3625083).

Almost surely, 2^12083605 is an apocalyptic number.

It is an amenable number.

12083605 is a deficient number, since it is larger than the sum of its proper divisors (2416727).

12083605 is an equidigital number, since it uses as much as digits as its factorization.

12083605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416726.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 12083605 is about 3476.1480118085. The cubic root of 12083605 is about 229.4733064645.

The spelling of 12083605 in words is "twelve million, eighty-three thousand, six hundred five".