14445247 has 2 divisors, whose sum is σ = 14445248. Its totient is φ = 14445246.

The previous prime is 14445191. The next prime is 14445251. The reversal of 14445247 is 74254441.

It is a strong prime.

It is an emirp because it is prime and its reverse (74254441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14445247 - 2²³ = 6056639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14445047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7222623 + 7222624.

It is an arithmetic number, because the mean of its divisors is an integer number (7222624).

Almost surely, 2^14445247 is an apocalyptic number.

14445247 is a deficient number, since it is larger than the sum of its proper divisors (1).

14445247 is an equidigital number, since it uses as much as digits as its factorization.

14445247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17920, while the sum is 31.

The square root of 14445247 is about 3800.6903320318. The cubic root of 14445247 is about 243.5426295028.

Adding to 14445247 its reverse (74254441), we get a palindrome (88699688).

The spelling of 14445247 in words is "fourteen million, four hundred forty-five thousand, two hundred forty-seven".