13242243 has 8 divisors (see below), whose sum is σ = 20178688. Its totient is φ = 7566984.

The previous prime is 13242199. The next prime is 13242253. The reversal of 13242243 is 34224231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13242243 - 2⁶ = 13242179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 630583 = 13242243 / (1 + 3 + 2 + 4 + 2 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13242253) 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 in 7 ways as a sum of consecutive naturals, for example, 315271 + ... + 315312.

It is an arithmetic number, because the mean of its divisors is an integer number (2522336).

Almost surely, 2^13242243 is an apocalyptic number.

13242243 is a deficient number, since it is larger than the sum of its proper divisors (6936445).

13242243 is an equidigital number, since it uses as much as digits as its factorization.

13242243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630593.

The product of its digits is 1152, while the sum is 21.

The square root of 13242243 is about 3638.9892827542. The cubic root of 13242243 is about 236.5849882353.

Adding to 13242243 its reverse (34224231), we get a palindrome (47466474).

The spelling of 13242243 in words is "thirteen million, two hundred forty-two thousand, two hundred forty-three".