13614221 has 2 divisors, whose sum is σ = 13614222. Its totient is φ = 13614220.

The previous prime is 13614197. The next prime is 13614233. The reversal of 13614221 is 12241631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8185321 + 5428900 = 2861^2 + 2330^2 .

It is a cyclic number.

It is not a de Polignac number, because 13614221 - 2¹⁸ = 13352077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13614193 and 13614202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13614421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6807110 + 6807111.

It is an arithmetic number, because the mean of its divisors is an integer number (6807111).

Almost surely, 2^13614221 is an apocalyptic number.

It is an amenable number.

13614221 is a deficient number, since it is larger than the sum of its proper divisors (1).

13614221 is an equidigital number, since it uses as much as digits as its factorization.

13614221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 13614221 is about 3689.7453841695. The cubic root of 13614221 is about 238.7798080525.

Adding to 13614221 its reverse (12241631), we get a palindrome (25855852).

The spelling of 13614221 in words is "thirteen million, six hundred fourteen thousand, two hundred twenty-one".