14705309 has 2 divisors, whose sum is σ = 14705310. Its totient is φ = 14705308.

The previous prime is 14705279. The next prime is 14705311. The reversal of 14705309 is 90350741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14100025 + 605284 = 3755^2 + 778^2 .

It is a cyclic number.

It is not a de Polignac number, because 14705309 - 2¹⁶ = 14639773 is a prime.

It is a super-2 number, since 2×14705309² = 432492225570962, which contains 22 as substring.

Together with 14705311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14705399) 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 as a sum of consecutive naturals, namely, 7352654 + 7352655.

It is an arithmetic number, because the mean of its divisors is an integer number (7352655).

Almost surely, 2^14705309 is an apocalyptic number.

It is an amenable number.

14705309 is a deficient number, since it is larger than the sum of its proper divisors (1).

14705309 is an equidigital number, since it uses as much as digits as its factorization.

14705309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 14705309 is about 3834.7501874307. The cubic root of 14705309 is about 244.9954684710.

The spelling of 14705309 in words is "fourteen million, seven hundred five thousand, three hundred nine".