11298181 has 2 divisors, whose sum is σ = 11298182. Its totient is φ = 11298180.

The previous prime is 11298127. The next prime is 11298193. The reversal of 11298181 is 18189211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9821956 + 1476225 = 3134^2 + 1215^2 .

It is an emirp because it is prime and its reverse (18189211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11298181 - 2²³ = 2909573 is a prime.

It is a super-2 number, since 2×11298181² = 255297787817522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11298101) 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, 5649090 + 5649091.

It is an arithmetic number, because the mean of its divisors is an integer number (5649091).

Almost surely, 2^11298181 is an apocalyptic number.

It is an amenable number.

11298181 is a deficient number, since it is larger than the sum of its proper divisors (1).

11298181 is an equidigital number, since it uses as much as digits as its factorization.

11298181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 31.

The square root of 11298181 is about 3361.2766919729. The cubic root of 11298181 is about 224.3896611075.

The spelling of 11298181 in words is "eleven million, two hundred ninety-eight thousand, one hundred eighty-one".