13224194 has 4 divisors (see below), whose sum is σ = 19836294. Its totient is φ = 6612096.

The previous prime is 13224193. The next prime is 13224221. The reversal of 13224194 is 49142231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8048569 + 5175625 = 2837^2 + 2275^2 .

It is not an unprimeable number, because it can be changed into a prime (13224191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3306047 + ... + 3306050.

Almost surely, 2^13224194 is an apocalyptic number.

13224194 is a deficient number, since it is larger than the sum of its proper divisors (6612100).

13224194 is an equidigital number, since it uses as much as digits as its factorization.

13224194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6612099.

The product of its digits is 1728, while the sum is 26.

The square root of 13224194 is about 3636.5084902967. The cubic root of 13224194 is about 236.4774519727.

The spelling of 13224194 in words is "thirteen million, two hundred twenty-four thousand, one hundred ninety-four".