14566921 has 2 divisors, whose sum is σ = 14566922. Its totient is φ = 14566920.

The previous prime is 14566913. The next prime is 14566957. The reversal of 14566921 is 12966541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11971600 + 2595321 = 3460^2 + 1611^2 .

It is a cyclic number.

It is not a de Polignac number, because 14566921 - 2³ = 14566913 is a prime.

It is a super-3 number, since 3×14566921³ (a number of 22 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (14566421) 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, 7283460 + 7283461.

It is an arithmetic number, because the mean of its divisors is an integer number (7283461).

Almost surely, 2^14566921 is an apocalyptic number.

It is an amenable number.

14566921 is a deficient number, since it is larger than the sum of its proper divisors (1).

14566921 is an equidigital number, since it uses as much as digits as its factorization.

14566921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 14566921 is about 3816.6635953408. The cubic root of 14566921 is about 244.2245145286.

The spelling of 14566921 in words is "fourteen million, five hundred sixty-six thousand, nine hundred twenty-one".