13116266 has 4 divisors (see below), whose sum is σ = 19674402. Its totient is φ = 6558132.

The previous prime is 13116263. The next prime is 13116277. The reversal of 13116266 is 66261131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66261131 = 2791 ⋅23741.

It can be written as a sum of positive squares in only one way, i.e., 10106041 + 3010225 = 3179^2 + 1735^2 .

It is not an unprimeable number, because it can be changed into a prime (13116263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3279065 + ... + 3279068.

Almost surely, 2^13116266 is an apocalyptic number.

13116266 is a deficient number, since it is larger than the sum of its proper divisors (6558136).

13116266 is an equidigital number, since it uses as much as digits as its factorization.

13116266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6558135.

The product of its digits is 1296, while the sum is 26.

The square root of 13116266 is about 3621.6385794278. The cubic root of 13116266 is about 235.8323644350.

Adding to 13116266 its reverse (66261131), we get a palindrome (79377397).

The spelling of 13116266 in words is "thirteen million, one hundred sixteen thousand, two hundred sixty-six".