14315221 has 2 divisors, whose sum is σ = 14315222. Its totient is φ = 14315220.

The previous prime is 14315201. The next prime is 14315237. The reversal of 14315221 is 12251341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12327121 + 1988100 = 3511^2 + 1410^2 .

It is a cyclic number.

It is not a de Polignac number, because 14315221 - 2⁹ = 14314709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14315201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7157610 + 7157611.

It is an arithmetic number, because the mean of its divisors is an integer number (7157611).

Almost surely, 2^14315221 is an apocalyptic number.

It is an amenable number.

14315221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14315221 is an equidigital number, since it uses as much as digits as its factorization.

14315221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 19.

The square root of 14315221 is about 3783.5460879973. The cubic root of 14315221 is about 242.8096925421.

Adding to 14315221 its reverse (12251341), we get a palindrome (26566562).

The spelling of 14315221 in words is "fourteen million, three hundred fifteen thousand, two hundred twenty-one".