13513226 has 12 divisors (see below), whose sum is σ = 20524182. Its totient is φ = 6672864.

The previous prime is 13513153. The next prime is 13513243. The reversal of 13513226 is 62231531.

It can be written as a sum of positive squares in 3 ways, for example, as 3996001 + 9517225 = 1999^2 + 3085^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15416 + ... + 16268.

Almost surely, 2^13513226 is an apocalyptic number.

13513226 is a deficient number, since it is larger than the sum of its proper divisors (7010956).

13513226 is an frugal number, since it uses more digits than its factorization.

13513226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033 (or 944 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 13513226 is about 3676.0340041953. The cubic root of 13513226 is about 238.1878915499.

Adding to 13513226 its reverse (62231531), we get a palindrome (75744757).

The spelling of 13513226 in words is "thirteen million, five hundred thirteen thousand, two hundred twenty-six".