14405534309 has 2 divisors, whose sum is σ = 14405534310. Its totient is φ = 14405534308.

The previous prime is 14405534237. The next prime is 14405534347. The reversal of 14405534309 is 90343550441.

It is an a-pointer prime, because the next prime (14405534347) can be obtained adding 14405534309 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10319512225 + 4086022084 = 101585^2 + 63922^2 .

It is an emirp because it is prime and its reverse (90343550441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14405534309 is a prime.

It is a super-2 number, since 2×14405534309² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14405534359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7202767154 + 7202767155.

It is an arithmetic number, because the mean of its divisors is an integer number (7202767155).

Almost surely, 2^14405534309 is an apocalyptic number.

It is an amenable number.

14405534309 is a deficient number, since it is larger than the sum of its proper divisors (1).

14405534309 is an equidigital number, since it uses as much as digits as its factorization.

14405534309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 14405534309 in words is "fourteen billion, four hundred five million, five hundred thirty-four thousand, three hundred nine".