14643257 has 2 divisors, whose sum is σ = 14643258. Its totient is φ = 14643256.

The previous prime is 14643241. The next prime is 14643287. The reversal of 14643257 is 75234641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11417641 + 3225616 = 3379^2 + 1796^2 .

It is a cyclic number.

It is not a de Polignac number, because 14643257 - 2⁴ = 14643241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14643287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7321628 + 7321629.

It is an arithmetic number, because the mean of its divisors is an integer number (7321629).

Almost surely, 2^14643257 is an apocalyptic number.

It is an amenable number.

14643257 is a deficient number, since it is larger than the sum of its proper divisors (1).

14643257 is an equidigital number, since it uses as much as digits as its factorization.

14643257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 32.

The square root of 14643257 is about 3826.6508855656. The cubic root of 14643257 is about 244.6503801233.

Adding to 14643257 its reverse (75234641), we get a palindrome (89877898).

The spelling of 14643257 in words is "fourteen million, six hundred forty-three thousand, two hundred fifty-seven".