13321226 has 4 divisors (see below), whose sum is σ = 19981842. Its totient is φ = 6660612.

The previous prime is 13321219. The next prime is 13321229. The reversal of 13321226 is 62212331.

It is a happy number.

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., 12967201 + 354025 = 3601^2 + 595^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13321198 and 13321207.

It is not an unprimeable number, because it can be changed into a prime (13321229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3330305 + ... + 3330308.

Almost surely, 2^13321226 is an apocalyptic number.

13321226 is a deficient number, since it is larger than the sum of its proper divisors (6660616).

13321226 is an equidigital number, since it uses as much as digits as its factorization.

13321226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6660615.

The product of its digits is 432, while the sum is 20.

The square root of 13321226 is about 3649.8254752796. The cubic root of 13321226 is about 237.0544244087.

Adding to 13321226 its reverse (62212331), we get a palindrome (75533557).

The spelling of 13321226 in words is "thirteen million, three hundred twenty-one thousand, two hundred twenty-six".