12419009 has 2 divisors, whose sum is σ = 12419010. Its totient is φ = 12419008.

The previous prime is 12418999. The next prime is 12419021. The reversal of 12419009 is 90091421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7579009 + 4840000 = 2753^2 + 2200^2 .

It is a cyclic number.

It is not a de Polignac number, because 12419009 - 2⁸ = 12418753 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12419089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6209504 + 6209505.

It is an arithmetic number, because the mean of its divisors is an integer number (6209505).

Almost surely, 2^12419009 is an apocalyptic number.

It is an amenable number.

12419009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12419009 is an equidigital number, since it uses as much as digits as its factorization.

12419009 is an evil number, because the sum of its binary digits is even.

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

The square root of 12419009 is about 3524.0614353328. The cubic root of 12419009 is about 231.5771193228.

The spelling of 12419009 in words is "twelve million, four hundred nineteen thousand, nine".