14021281 has 2 divisors, whose sum is σ = 14021282. Its totient is φ = 14021280.

The previous prime is 14021279. The next prime is 14021299. The reversal of 14021281 is 18212041.

It is a happy number.

14021281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13395600 + 625681 = 3660^2 + 791^2 .

It is a cyclic number.

It is not a de Polignac number, because 14021281 - 2¹ = 14021279 is a prime.

It is a super-2 number, since 2×14021281² = 393192641761922, which contains 22 as substring.

Together with 14021279, it forms a pair of twin primes.

It is the 3745-th Hogben number.

It is equal to p₉₁₁₃₅₀ and since 14021281 and 911350 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (14021681) by changing a digit.

It is a nontrivial repunit in base 3744.

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, 7010640 + 7010641.

It is an arithmetic number, because the mean of its divisors is an integer number (7010641).

Almost surely, 2^14021281 is an apocalyptic number.

It is an amenable number.

14021281 is a deficient number, since it is larger than the sum of its proper divisors (1).

14021281 is an equidigital number, since it uses as much as digits as its factorization.

14021281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 14021281 is about 3744.5001001469. The cubic root of 14021281 is about 241.1362842060.

The spelling of 14021281 in words is "fourteen million, twenty-one thousand, two hundred eighty-one".