12230805 has 16 divisors (see below), whose sum is σ = 19891584. Its totient is φ = 6415680.

The previous prime is 12230789. The next prime is 12230807. The reversal of 12230805 is 50803221.

It is not a de Polignac number, because 12230805 - 2⁴ = 12230789 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230807) 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, 5769 + ... + 7598.

It is an arithmetic number, because the mean of its divisors is an integer number (1243224).

Almost surely, 2^12230805 is an apocalyptic number.

12230805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12230805 is a deficient number, since it is larger than the sum of its proper divisors (7660779).

12230805 is a wasteful number, since it uses less digits than its factorization.

12230805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13436.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 12230805 is about 3497.2567821079. The cubic root of 12230805 is about 230.4013471360.

The spelling of 12230805 in words is "twelve million, two hundred thirty thousand, eight hundred five".