13401217 has 2 divisors, whose sum is σ = 13401218. Its totient is φ = 13401216.

The previous prime is 13401211. The next prime is 13401233. The reversal of 13401217 is 71210431.

13401217 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11861136 + 1540081 = 3444^2 + 1241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13401217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13401194 and 13401203.

It is not a weakly prime, because it can be changed into another prime (13401211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6700608 + 6700609.

It is an arithmetic number, because the mean of its divisors is an integer number (6700609).

Almost surely, 2^13401217 is an apocalyptic number.

It is an amenable number.

13401217 is a deficient number, since it is larger than the sum of its proper divisors (1).

13401217 is an equidigital number, since it uses as much as digits as its factorization.

13401217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 13401217 is about 3660.7672693030. The cubic root of 13401217 is about 237.5279642049.

Adding to 13401217 its reverse (71210431), we get a palindrome (84611648).

The spelling of 13401217 in words is "thirteen million, four hundred one thousand, two hundred seventeen".