14965921 has 2 divisors, whose sum is σ = 14965922. Its totient is φ = 14965920.

The previous prime is 14965919. The next prime is 14965927. The reversal of 14965921 is 12956941.

14965921 = 2735² + 2736².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7485696 + 7480225 = 2736^2 + 2735^2 .

It is a cyclic number.

It is not a de Polignac number, because 14965921 - 2¹ = 14965919 is a prime.

Together with 14965919, it forms a pair of twin primes.

It is equal to p₉₆₈₆₄₄ and since 14965921 and 968644 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 (14965927) 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, 7482960 + 7482961.

It is an arithmetic number, because the mean of its divisors is an integer number (7482961).

Almost surely, 2^14965921 is an apocalyptic number.

14965921 is the 2736-th centered square number.

It is an amenable number.

14965921 is a deficient number, since it is larger than the sum of its proper divisors (1).

14965921 is an equidigital number, since it uses as much as digits as its factorization.

14965921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 37.

The square root of 14965921 is about 3868.5812644948. The cubic root of 14965921 is about 246.4342968314.

The spelling of 14965921 in words is "fourteen million, nine hundred sixty-five thousand, nine hundred twenty-one".