13318441 has 2 divisors, whose sum is σ = 13318442. Its totient is φ = 13318440.

The previous prime is 13318421. The next prime is 13318451. The reversal of 13318441 is 14481331.

13318441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6739216 + 6579225 = 2596^2 + 2565^2 .

It is a cyclic number.

It is not a de Polignac number, because 13318441 - 2⁹ = 13317929 is a prime.

It is not a weakly prime, because it can be changed into another prime (13318421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6659220 + 6659221.

It is an arithmetic number, because the mean of its divisors is an integer number (6659221).

Almost surely, 2^13318441 is an apocalyptic number.

It is an amenable number.

13318441 is a deficient number, since it is larger than the sum of its proper divisors (1).

13318441 is an equidigital number, since it uses as much as digits as its factorization.

13318441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 13318441 is about 3649.4439302447. The cubic root of 13318441 is about 237.0379033422.

Adding to 13318441 its reverse (14481331), we get a palindrome (27799772).

It can be divided in two parts, 133184 and 41, that added together give a square (133225 = 365²).

The spelling of 13318441 in words is "thirteen million, three hundred eighteen thousand, four hundred forty-one".