12009419 has 2 divisors, whose sum is σ = 12009420. Its totient is φ = 12009418.

The previous prime is 12009409. The next prime is 12009421. The reversal of 12009419 is 91490021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12009419 is a prime.

It is a super-2 number, since 2×12009419² = 288452289435122, which contains 22 as substring.

Together with 12009421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12009409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004709 + 6004710.

It is an arithmetic number, because the mean of its divisors is an integer number (6004710).

Almost surely, 2^12009419 is an apocalyptic number.

12009419 is a deficient number, since it is larger than the sum of its proper divisors (1).

12009419 is an equidigital number, since it uses as much as digits as its factorization.

12009419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 12009419 is about 3465.4608640122. The cubic root of 12009419 is about 229.0027331977.

The spelling of 12009419 in words is "twelve million, nine thousand, four hundred nineteen".