13841909 has 2 divisors, whose sum is σ = 13841910. Its totient is φ = 13841908.

The previous prime is 13841881. The next prime is 13841911. The reversal of 13841909 is 90914831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12229009 + 1612900 = 3497^2 + 1270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13841909 is a prime.

Together with 13841911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13841939) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6920954 + 6920955.

It is an arithmetic number, because the mean of its divisors is an integer number (6920955).

Almost surely, 2^13841909 is an apocalyptic number.

It is an amenable number.

13841909 is a deficient number, since it is larger than the sum of its proper divisors (1).

13841909 is an equidigital number, since it uses as much as digits as its factorization.

13841909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 13841909 is about 3720.4716098903. The cubic root of 13841909 is about 240.1035953232.

The spelling of 13841909 in words is "thirteen million, eight hundred forty-one thousand, nine hundred nine".