266113 has 4 divisors (see below), whose sum is σ = 271188. Its totient is φ = 261040.

The previous prime is 266111. The next prime is 266117. The reversal of 266113 is 311662.

266113 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 219024 + 47089 = 468^2 + 217^2 .

It is a cyclic number.

It is not a de Polignac number, because 266113 - 2¹ = 266111 is a prime.

It is a super-2 number, since 2×266113² = 141632257538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2458 + ... + 2563.

It is an arithmetic number, because the mean of its divisors is an integer number (67797).

2²⁶⁶¹¹³ is an apocalyptic number.

It is an amenable number.

266113 is a deficient number, since it is larger than the sum of its proper divisors (5075).

266113 is an equidigital number, since it uses as much as digits as its factorization.

266113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074.

The product of its digits is 216, while the sum is 19.

The square root of 266113 is about 515.8614154984. The cubic root of 266113 is about 64.3213815007.

Adding to 266113 its reverse (311662), we get a palindrome (577775).

The spelling of 266113 in words is "two hundred sixty-six thousand, one hundred thirteen".