11284181 has 2 divisors, whose sum is σ = 11284182. Its totient is φ = 11284180.

The previous prime is 11284171. The next prime is 11284187. The reversal of 11284181 is 18148211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8614225 + 2669956 = 2935^2 + 1634^2 .

It is a cyclic number.

It is not a de Polignac number, because 11284181 - 2¹⁴ = 11267797 is a prime.

It is a super-2 number, since 2×11284181² = 254665481681522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11284181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11284187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5642090 + 5642091.

It is an arithmetic number, because the mean of its divisors is an integer number (5642091).

Almost surely, 2^11284181 is an apocalyptic number.

It is an amenable number.

11284181 is a deficient number, since it is larger than the sum of its proper divisors (1).

11284181 is an equidigital number, since it uses as much as digits as its factorization.

11284181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512, while the sum is 26.

The square root of 11284181 is about 3359.1935043995. The cubic root of 11284181 is about 224.2969395826.

The spelling of 11284181 in words is "eleven million, two hundred eighty-four thousand, one hundred eighty-one".