11243569 has 2 divisors, whose sum is σ = 11243570. Its totient is φ = 11243568.

The previous prime is 11243563. The next prime is 11243593. The reversal of 11243569 is 96534211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6315169 + 4928400 = 2513^2 + 2220^2 .

It is a cyclic number.

It is not a de Polignac number, because 11243569 - 2¹³ = 11235377 is a prime.

It is a super-2 number, since 2×11243569² = 252835687715522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11243569.

It is not a weakly prime, because it can be changed into another prime (11243563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5621784 + 5621785.

It is an arithmetic number, because the mean of its divisors is an integer number (5621785).

Almost surely, 2^11243569 is an apocalyptic number.

It is an amenable number.

11243569 is a deficient number, since it is larger than the sum of its proper divisors (1).

11243569 is an equidigital number, since it uses as much as digits as its factorization.

11243569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 31.

The square root of 11243569 is about 3353.1431523274. The cubic root of 11243569 is about 224.0275330208.

It can be divided in two parts, 112 and 43569, that added together give a square (43681 = 209²).

The spelling of 11243569 in words is "eleven million, two hundred forty-three thousand, five hundred sixty-nine".