11236289 has 4 divisors (see below), whose sum is σ = 11293524. Its totient is φ = 11179056.

The previous prime is 11236283. The next prime is 11236307. The reversal of 11236289 is 98263211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6250000 + 4986289 = 2500^2 + 2233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11236289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11236283) 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 in 3 ways as a sum of consecutive naturals, for example, 28322 + ... + 28715.

It is an arithmetic number, because the mean of its divisors is an integer number (2823381).

Almost surely, 2^11236289 is an apocalyptic number.

It is an amenable number.

11236289 is a deficient number, since it is larger than the sum of its proper divisors (57235).

11236289 is an equidigital number, since it uses as much as digits as its factorization.

11236289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57234.

The product of its digits is 5184, while the sum is 32.

The square root of 11236289 is about 3352.0574279090. The cubic root of 11236289 is about 223.9791713733.

It can be divided in two parts, 11236 and 289, that multiplied together give a square (3247204 = 1802²).

The spelling of 11236289 in words is "eleven million, two hundred thirty-six thousand, two hundred eighty-nine".