14861909 has 2 divisors, whose sum is σ = 14861910. Its totient is φ = 14861908.

The previous prime is 14861879. The next prime is 14861929. The reversal of 14861909 is 90916841.

It is a happy number.

14861909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14799409 + 62500 = 3847^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 14861909 - 2¹⁶ = 14796373 is a prime.

It is a Sophie Germain 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 (14861929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7430954 + 7430955.

It is an arithmetic number, because the mean of its divisors is an integer number (7430955).

Almost surely, 2^14861909 is an apocalyptic number.

It is an amenable number.

14861909 is a deficient number, since it is larger than the sum of its proper divisors (1).

14861909 is an equidigital number, since it uses as much as digits as its factorization.

14861909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 14861909 is about 3855.1146545855. The cubic root of 14861909 is about 245.8620693275.

The spelling of 14861909 in words is "fourteen million, eight hundred sixty-one thousand, nine hundred nine".