14391209 has 8 divisors (see below), whose sum is σ = 16481088. Its totient is φ = 12309840.

The previous prime is 14391199. The next prime is 14391241. The reversal of 14391209 is 90219341.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14391209 - 2¹⁶ = 14325673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14391269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2054 + ... + 5744.

It is an arithmetic number, because the mean of its divisors is an integer number (2060136).

Almost surely, 2^14391209 is an apocalyptic number.

It is an amenable number.

14391209 is a deficient number, since it is larger than the sum of its proper divisors (2089879).

14391209 is an equidigital number, since it uses as much as digits as its factorization.

14391209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4255.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 14391209 is about 3793.5746994095. The cubic root of 14391209 is about 243.2385617470.

The spelling of 14391209 in words is "fourteen million, three hundred ninety-one thousand, two hundred nine".