14216909 has 6 divisors (see below), whose sum is σ = 16538094. Its totient is φ = 12185880.

The previous prime is 14216903. The next prime is 14216911. The reversal of 14216909 is 90961241.

It can be written as a sum of positive squares in only one way, i.e., 11055625 + 3161284 = 3325^2 + 1778^2 .

It is not a de Polignac number, because 14216909 - 2¹⁶ = 14151373 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 (14216903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145022 + ... + 145119.

It is an arithmetic number, because the mean of its divisors is an integer number (2756349).

Almost surely, 2^14216909 is an apocalyptic number.

It is an amenable number.

14216909 is a deficient number, since it is larger than the sum of its proper divisors (2321185).

14216909 is an equidigital number, since it uses as much as digits as its factorization.

14216909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290155 (or 290148 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 14216909 is about 3770.5316601243. The cubic root of 14216909 is about 242.2525708108.

The spelling of 14216909 in words is "fourteen million, two hundred sixteen thousand, nine hundred nine".