13227013 has 4 divisors (see below), whose sum is σ = 13234540. Its totient is φ = 13219488.

The previous prime is 13226921. The next prime is 13227023. The reversal of 13227013 is 31072231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4088484 + 9138529 = 2022^2 + 3023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13227013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13227023) 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, 433 + ... + 5161.

It is an arithmetic number, because the mean of its divisors is an integer number (3308635).

Almost surely, 2^13227013 is an apocalyptic number.

It is an amenable number.

13227013 is a deficient number, since it is larger than the sum of its proper divisors (7527).

13227013 is an equidigital number, since it uses as much as digits as its factorization.

13227013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7526.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 13227013 is about 3636.8960667030. The cubic root of 13227013 is about 236.4942540697.

Adding to 13227013 its reverse (31072231), we get a palindrome (44299244).

The spelling of 13227013 in words is "thirteen million, two hundred twenty-seven thousand, thirteen".