14091309 has 12 divisors (see below), whose sum is σ = 20612800. Its totient is φ = 9274824.

The previous prime is 14091289. The next prime is 14091313. The reversal of 14091309 is 90319041.

It is not a de Polignac number, because 14091309 - 2¹¹ = 14089261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14091359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9199 + ... + 10620.

Almost surely, 2^14091309 is an apocalyptic number.

It is an amenable number.

14091309 is a deficient number, since it is larger than the sum of its proper divisors (6521491).

14091309 is a wasteful number, since it uses less digits than its factorization.

14091309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19904 (or 19901 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 14091309 is about 3753.8392347036. The cubic root of 14091309 is about 241.5370620691.

It can be divided in two parts, 14091 and 309, that added together give a square (14400 = 120²).

The spelling of 14091309 in words is "fourteen million, ninety-one thousand, three hundred nine".