14205649 has 2 divisors, whose sum is σ = 14205650. Its totient is φ = 14205648.

The previous prime is 14205647. The next prime is 14205671. The reversal of 14205649 is 94650241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13140625 + 1065024 = 3625^2 + 1032^2 .

It is a cyclic number.

It is not a de Polignac number, because 14205649 - 2¹ = 14205647 is a prime.

It is a super-2 number, since 2×14205649² = 403600927022402, which contains 22 as substring.

Together with 14205647, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 14205649.

It is not a weakly prime, because it can be changed into another prime (14205647) 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, 7102824 + 7102825.

It is an arithmetic number, because the mean of its divisors is an integer number (7102825).

Almost surely, 2^14205649 is an apocalyptic number.

It is an amenable number.

14205649 is a deficient number, since it is larger than the sum of its proper divisors (1).

14205649 is an equidigital number, since it uses as much as digits as its factorization.

14205649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 14205649 is about 3769.0382062272. The cubic root of 14205649 is about 242.1885980582.

The spelling of 14205649 in words is "fourteen million, two hundred five thousand, six hundred forty-nine".