14105309 has 4 divisors (see below), whose sum is σ = 14315904. Its totient is φ = 13894716.

The previous prime is 14105249. The next prime is 14105317. The reversal of 14105309 is 90350141.

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 a de Polignac number, because none of the positive numbers 2^k-14105309 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 (14105369) 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, 105197 + ... + 105330.

It is an arithmetic number, because the mean of its divisors is an integer number (3578976).

Almost surely, 2^14105309 is an apocalyptic number.

It is an amenable number.

14105309 is a deficient number, since it is larger than the sum of its proper divisors (210595).

14105309 is an equidigital number, since it uses as much as digits as its factorization.

14105309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210594.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 14105309 is about 3755.7035293005. The cubic root of 14105309 is about 241.6170262422.

The spelling of 14105309 in words is "fourteen million, one hundred five thousand, three hundred nine".