12804019 has 2 divisors, whose sum is σ = 12804020. Its totient is φ = 12804018.

The previous prime is 12804007. The next prime is 12804041. The reversal of 12804019 is 91040821.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (91040821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12804019 is a prime.

It is a super-2 number, since 2×12804019² = 327885805104722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12803984 and 12804002.

It is not a weakly prime, because it can be changed into another prime (12804719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6402009 + 6402010.

It is an arithmetic number, because the mean of its divisors is an integer number (6402010).

Almost surely, 2^12804019 is an apocalyptic number.

12804019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12804019 is an equidigital number, since it uses as much as digits as its factorization.

12804019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 12804019 is about 3578.2703922426. The cubic root of 12804019 is about 233.9458990519.

The spelling of 12804019 in words is "twelve million, eight hundred four thousand, nineteen".