12413909 has 2 divisors, whose sum is σ = 12413910. Its totient is φ = 12413908.

The previous prime is 12413887. The next prime is 12413911. The reversal of 12413909 is 90931421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12229009 + 184900 = 3497^2 + 430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12413909 is a prime.

It is a Sophie Germain prime.

Together with 12413911, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12413959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6206954 + 6206955.

It is an arithmetic number, because the mean of its divisors is an integer number (6206955).

Almost surely, 2^12413909 is an apocalyptic number.

It is an amenable number.

12413909 is a deficient number, since it is larger than the sum of its proper divisors (1).

12413909 is an equidigital number, since it uses as much as digits as its factorization.

12413909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 12413909 is about 3523.3377641095. The cubic root of 12413909 is about 231.5454151019.

The spelling of 12413909 in words is "twelve million, four hundred thirteen thousand, nine hundred nine".