13135266 has 12 divisors (see below), whose sum is σ = 28459782. Its totient is φ = 4378416.

The previous prime is 13135247. The next prime is 13135279. The reversal of 13135266 is 66253131.

13135266 is a `hidden beast` number, since 131 + 3 + 526 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10055241 + 3080025 = 3171^2 + 1755^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 364851 + ... + 364886.

Almost surely, 2^13135266 is an apocalyptic number.

13135266 is an abundant number, since it is smaller than the sum of its proper divisors (15324516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13135266 is a wasteful number, since it uses less digits than its factorization.

13135266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729745 (or 729742 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 13135266 is about 3624.2607522086. The cubic root of 13135266 is about 235.9461837454.

Adding to 13135266 its reverse (66253131), we get a palindrome (79388397).

The spelling of 13135266 in words is "thirteen million, one hundred thirty-five thousand, two hundred sixty-six".