12104205 has 8 divisors (see below), whose sum is σ = 19366752. Its totient is φ = 6455568.

The previous prime is 12104201. The next prime is 12104207. The reversal of 12104205 is 50240121.

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

It is not a de Polignac number, because 12104205 - 2² = 12104201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 806947 = 12104205 / (1 + 2 + 1 + 0 + 4 + 2 + 0 + 5).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12104201) 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 7 ways as a sum of consecutive naturals, for example, 403459 + ... + 403488.

It is an arithmetic number, because the mean of its divisors is an integer number (2420844).

Almost surely, 2^12104205 is an apocalyptic number.

12104205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12104205 is a deficient number, since it is larger than the sum of its proper divisors (7262547).

12104205 is an equidigital number, since it uses as much as digits as its factorization.

12104205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806955.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 12104205 is about 3479.1097999345. The cubic root of 12104205 is about 229.6036336417.

Adding to 12104205 its reverse (50240121), we get a palindrome (62344326).

The spelling of 12104205 in words is "twelve million, one hundred four thousand, two hundred five".