14069909 has 6 divisors (see below), whose sum is σ = 16367094. Its totient is φ = 12059880.

The previous prime is 14069851. The next prime is 14069927. The reversal of 14069909 is 90996041.

14069909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13764100 + 305809 = 3710^2 + 553^2 .

It is a de Polignac number, because none of the positive numbers 2^k-14069909 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 (14069609) 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, 143522 + ... + 143619.

It is an arithmetic number, because the mean of its divisors is an integer number (2727849).

Almost surely, 2^14069909 is an apocalyptic number.

It is an amenable number.

14069909 is a deficient number, since it is larger than the sum of its proper divisors (2297185).

14069909 is an equidigital number, since it uses as much as digits as its factorization.

14069909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287155 (or 287148 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 14069909 is about 3750.9877365835. The cubic root of 14069909 is about 241.4147286992.

It can be divided in two parts, 14069 and 909, that multiplied together give a palindrome (12788721).

The spelling of 14069909 in words is "fourteen million, sixty-nine thousand, nine hundred nine".