14921281 has 2 divisors, whose sum is σ = 14921282. Its totient is φ = 14921280.

The previous prime is 14921267. The next prime is 14921299. The reversal of 14921281 is 18212941.

14921281 is digitally balanced in base 2, 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., 10857025 + 4064256 = 3295^2 + 2016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14921281 is a prime.

It is a super-2 number, since 2×14921281² = 445289253361922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (14921201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7460640 + 7460641.

It is an arithmetic number, because the mean of its divisors is an integer number (7460641).

Almost surely, 2^14921281 is an apocalyptic number.

14921281 is the 1728-th centered decagonal number.

It is an amenable number.

14921281 is a deficient number, since it is larger than the sum of its proper divisors (1).

14921281 is an equidigital number, since it uses as much as digits as its factorization.

14921281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 28.

The square root of 14921281 is about 3862.8073987710. The cubic root of 14921281 is about 246.1890333237.

The spelling of 14921281 in words is "fourteen million, nine hundred twenty-one thousand, two hundred eighty-one".