13185226 has 4 divisors (see below), whose sum is σ = 19777842. Its totient is φ = 6592612.

The previous prime is 13185223. The next prime is 13185257. The reversal of 13185226 is 62258131.

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., 9579025 + 3606201 = 3095^2 + 1899^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13185194 and 13185203.

It is not an unprimeable number, because it can be changed into a prime (13185223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3296305 + ... + 3296308.

Almost surely, 2^13185226 is an apocalyptic number.

13185226 is a deficient number, since it is larger than the sum of its proper divisors (6592616).

13185226 is an equidigital number, since it uses as much as digits as its factorization.

13185226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6592615.

The product of its digits is 2880, while the sum is 28.

The square root of 13185226 is about 3631.1466508529. The cubic root of 13185226 is about 236.2449458154.

The spelling of 13185226 in words is "thirteen million, one hundred eighty-five thousand, two hundred twenty-six".