11186261 has 2 divisors, whose sum is σ = 11186262. Its totient is φ = 11186260.

The previous prime is 11186249. The next prime is 11186267. The reversal of 11186261 is 16268111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6280036 + 4906225 = 2506^2 + 2215^2 .

It is an emirp because it is prime and its reverse (16268111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11186261 - 2¹⁴ = 11169877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11186261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11186267) by changing a digit.

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 as a sum of consecutive naturals, namely, 5593130 + 5593131.

It is an arithmetic number, because the mean of its divisors is an integer number (5593131).

Almost surely, 2^11186261 is an apocalyptic number.

It is an amenable number.

11186261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11186261 is an equidigital number, since it uses as much as digits as its factorization.

11186261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 26.

The square root of 11186261 is about 3344.5868205206. The cubic root of 11186261 is about 223.6462648669.

The spelling of 11186261 in words is "eleven million, one hundred eighty-six thousand, two hundred sixty-one".