14380909 has 2 divisors, whose sum is σ = 14380910. Its totient is φ = 14380908.

The previous prime is 14380903. The next prime is 14380937. The reversal of 14380909 is 90908341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7209225 + 7171684 = 2685^2 + 2678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14380909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14380903) 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, 7190454 + 7190455.

It is an arithmetic number, because the mean of its divisors is an integer number (7190455).

Almost surely, 2^14380909 is an apocalyptic number.

It is an amenable number.

14380909 is a deficient number, since it is larger than the sum of its proper divisors (1).

14380909 is an equidigital number, since it uses as much as digits as its factorization.

14380909 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 34.

The square root of 14380909 is about 3792.2168978053. The cubic root of 14380909 is about 243.1805180915.

The spelling of 14380909 in words is "fourteen million, three hundred eighty thousand, nine hundred nine".