14020661 has 2 divisors, whose sum is σ = 14020662. Its totient is φ = 14020660.

The previous prime is 14020637. The next prime is 14020663. The reversal of 14020661 is 16602041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13734436 + 286225 = 3706^2 + 535^2 .

It is an emirp because it is prime and its reverse (16602041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14020661 - 2¹⁰ = 14019637 is a prime.

Together with 14020663, 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 (14020663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7010330 + 7010331.

It is an arithmetic number, because the mean of its divisors is an integer number (7010331).

Almost surely, 2^14020661 is an apocalyptic number.

It is an amenable number.

14020661 is a deficient number, since it is larger than the sum of its proper divisors (1).

14020661 is an equidigital number, since it uses as much as digits as its factorization.

14020661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 14020661 is about 3744.4173111447. The cubic root of 14020661 is about 241.1327299255.

The spelling of 14020661 in words is "fourteen million, twenty thousand, six hundred sixty-one".