13219841 has 4 divisors (see below), whose sum is σ = 13577172. Its totient is φ = 12862512.

The previous prime is 13219813. The next prime is 13219861. The reversal of 13219841 is 14891231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14891231 = 19 ⋅783749.

It can be written as a sum of positive squares in 2 ways, for example, as 6864400 + 6355441 = 2620^2 + 2521^2 .

It is a cyclic number.

It is not a de Polignac number, because 13219841 - 2⁶ = 13219777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13219861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178610 + ... + 178683.

It is an arithmetic number, because the mean of its divisors is an integer number (3394293).

Almost surely, 2^13219841 is an apocalyptic number.

It is an amenable number.

13219841 is a deficient number, since it is larger than the sum of its proper divisors (357331).

13219841 is an equidigital number, since it uses as much as digits as its factorization.

13219841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357330.

The product of its digits is 1728, while the sum is 29.

The square root of 13219841 is about 3635.9099273772. The cubic root of 13219841 is about 236.4515020782.

The spelling of 13219841 in words is "thirteen million, two hundred nineteen thousand, eight hundred forty-one".