14209209 has 16 divisors (see below), whose sum is σ = 24058240. Its totient is φ = 8119440.

The previous prime is 14209189. The next prime is 14209213. The reversal of 14209209 is 90290241.

14209209 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14209209 - 2⁷ = 14209081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14209219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37402 + ... + 37779.

It is an arithmetic number, because the mean of its divisors is an integer number (1503640).

Almost surely, 2^14209209 is an apocalyptic number.

It is an amenable number.

14209209 is a deficient number, since it is larger than the sum of its proper divisors (9849031).

14209209 is an equidigital number, since it uses as much as digits as its factorization.

14209209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75197 (or 75191 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 14209209 is about 3769.5104456680. The cubic root of 14209209 is about 242.2088275550.

The spelling of 14209209 in words is "fourteen million, two hundred nine thousand, two hundred nine".