14106809 has 2 divisors, whose sum is σ = 14106810. Its totient is φ = 14106808.

The previous prime is 14106791. The next prime is 14106823. The reversal of 14106809 is 90860141.

14106809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7856809 + 6250000 = 2803^2 + 2500^2 .

It is a cyclic number.

It is not a de Polignac number, because 14106809 - 2¹² = 14102713 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (14106839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7053404 + 7053405.

It is an arithmetic number, because the mean of its divisors is an integer number (7053405).

Almost surely, 2^14106809 is an apocalyptic number.

It is an amenable number.

14106809 is a deficient number, since it is larger than the sum of its proper divisors (1).

14106809 is an equidigital number, since it uses as much as digits as its factorization.

14106809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 14106809 is about 3755.9032202654. The cubic root of 14106809 is about 241.6255906935.

The spelling of 14106809 in words is "fourteen million, one hundred six thousand, eight hundred nine".