2269181 has 2 divisors, whose sum is σ = 2269182. Its totient is φ = 2269180.

The previous prime is 2269171. The next prime is 2269217. The reversal of 2269181 is 1819622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1865956 + 403225 = 1366^2 + 635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2269181 is a prime.

It is a super-2 number, since 2×2269181² = 10298364821522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2269171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1134590 + 1134591.

It is an arithmetic number, because the mean of its divisors is an integer number (1134591).

2^2269181 is an apocalyptic number.

It is an amenable number.

2269181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2269181 is an equidigital number, since it uses as much as digits as its factorization.

2269181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 29.

The square root of 2269181 is about 1506.3800981160. The cubic root of 2269181 is about 131.4083754074.

The spelling of 2269181 in words is "two million, two hundred sixty-nine thousand, one hundred eighty-one".