13198441 has 2 divisors, whose sum is σ = 13198442. Its totient is φ = 13198440.

The previous prime is 13198439. The next prime is 13198453. The reversal of 13198441 is 14489131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7722841 + 5475600 = 2779^2 + 2340^2 .

It is a cyclic number.

It is not a de Polignac number, because 13198441 - 2¹ = 13198439 is a prime.

Together with 13198439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13198541) 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, 6599220 + 6599221.

It is an arithmetic number, because the mean of its divisors is an integer number (6599221).

Almost surely, 2^13198441 is an apocalyptic number.

It is an amenable number.

13198441 is a deficient number, since it is larger than the sum of its proper divisors (1).

13198441 is an equidigital number, since it uses as much as digits as its factorization.

13198441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 31.

The square root of 13198441 is about 3632.9658682680. The cubic root of 13198441 is about 236.3238456014.

The spelling of 13198441 in words is "thirteen million, one hundred ninety-eight thousand, four hundred forty-one".