14644561 has 2 divisors, whose sum is σ = 14644562. Its totient is φ = 14644560.

The previous prime is 14644541. The next prime is 14644571. The reversal of 14644561 is 16544641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7595536 + 7049025 = 2756^2 + 2655^2 .

It is an emirp because it is prime and its reverse (16544641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14644561 is a prime.

It is not a weakly prime, because it can be changed into another prime (14644501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7322280 + 7322281.

It is an arithmetic number, because the mean of its divisors is an integer number (7322281).

Almost surely, 2^14644561 is an apocalyptic number.

It is an amenable number.

14644561 is a deficient number, since it is larger than the sum of its proper divisors (1).

14644561 is an equidigital number, since it uses as much as digits as its factorization.

14644561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 31.

The square root of 14644561 is about 3826.8212657505. The cubic root of 14644561 is about 244.6576420466.

The spelling of 14644561 in words is "fourteen million, six hundred forty-four thousand, five hundred sixty-one".