11266813 has 2 divisors, whose sum is σ = 11266814. Its totient is φ = 11266812.

The previous prime is 11266811. The next prime is 11266823. The reversal of 11266813 is 31866211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10903204 + 363609 = 3302^2 + 603^2 .

It is a cyclic number.

It is not a de Polignac number, because 11266813 - 2¹ = 11266811 is a prime.

Together with 11266811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11266811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5633406 + 5633407.

It is an arithmetic number, because the mean of its divisors is an integer number (5633407).

Almost surely, 2^11266813 is an apocalyptic number.

It is an amenable number.

11266813 is a deficient number, since it is larger than the sum of its proper divisors (1).

11266813 is an equidigital number, since it uses as much as digits as its factorization.

11266813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The square root of 11266813 is about 3356.6073645870. The cubic root of 11266813 is about 224.1818052606.

The spelling of 11266813 in words is "eleven million, two hundred sixty-six thousand, eight hundred thirteen".