14809309 has 4 divisors (see below), whose sum is σ = 15453216. Its totient is φ = 14165404.

The previous prime is 14809279. The next prime is 14809349. The reversal of 14809309 is 90390841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14809309 - 2⁷ = 14809181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14809349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321919 + ... + 321964.

It is an arithmetic number, because the mean of its divisors is an integer number (3863304).

Almost surely, 2^14809309 is an apocalyptic number.

It is an amenable number.

14809309 is a deficient number, since it is larger than the sum of its proper divisors (643907).

14809309 is an equidigital number, since it uses as much as digits as its factorization.

14809309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643906.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 14809309 is about 3848.2865018083. The cubic root of 14809309 is about 245.5716707467.

The spelling of 14809309 in words is "fourteen million, eight hundred nine thousand, three hundred nine".