14249309 has 4 divisors (see below), whose sum is σ = 14429760. Its totient is φ = 14068860.

The previous prime is 14249303. The next prime is 14249327. The reversal of 14249309 is 90394241.

It is a happy number.

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 14249309 - 2⁴ = 14249293 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 (14249303) 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, 90107 + ... + 90264.

It is an arithmetic number, because the mean of its divisors is an integer number (3607440).

Almost surely, 2^14249309 is an apocalyptic number.

It is an amenable number.

14249309 is a deficient number, since it is larger than the sum of its proper divisors (180451).

14249309 is an equidigital number, since it uses as much as digits as its factorization.

14249309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180450.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 14249309 is about 3774.8256913399. The cubic root of 14249309 is about 242.4364604847.

The spelling of 14249309 in words is "fourteen million, two hundred forty-nine thousand, three hundred nine".