11364181 has 2 divisors, whose sum is σ = 11364182. Its totient is φ = 11364180.

The previous prime is 11364179. The next prime is 11364187. The reversal of 11364181 is 18146311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11329956 + 34225 = 3366^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 11364181 - 2¹ = 11364179 is a prime.

It is a super-2 number, since 2×11364181² = 258289219601522, which contains 22 as substring.

Together with 11364179, 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 (11364187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5682090 + 5682091.

It is an arithmetic number, because the mean of its divisors is an integer number (5682091).

Almost surely, 2^11364181 is an apocalyptic number.

It is an amenable number.

11364181 is a deficient number, since it is larger than the sum of its proper divisors (1).

11364181 is an equidigital number, since it uses as much as digits as its factorization.

11364181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 25.

The square root of 11364181 is about 3371.0800939758. The cubic root of 11364181 is about 224.8257482127.

The spelling of 11364181 in words is "eleven million, three hundred sixty-four thousand, one hundred eighty-one".