14180909 has 2 divisors, whose sum is σ = 14180910. Its totient is φ = 14180908.

The previous prime is 14180891. The next prime is 14180911. The reversal of 14180909 is 90908141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10220809 + 3960100 = 3197^2 + 1990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14180909 is a prime.

It is a Sophie Germain prime.

Together with 14180911, 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 (14180989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7090454 + 7090455.

It is an arithmetic number, because the mean of its divisors is an integer number (7090455).

Almost surely, 2^14180909 is an apocalyptic number.

It is an amenable number.

14180909 is a deficient number, since it is larger than the sum of its proper divisors (1).

14180909 is an equidigital number, since it uses as much as digits as its factorization.

14180909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 14180909 is about 3765.7547716228. The cubic root of 14180909 is about 242.0479209793.

The spelling of 14180909 in words is "fourteen million, one hundred eighty thousand, nine hundred nine".