11228285 has 4 divisors (see below), whose sum is σ = 13473948. Its totient is φ = 8982624.

The previous prime is 11228267. The next prime is 11228299. The reversal of 11228285 is 58282211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58282211 = 13 ⋅4483247.

It can be written as a sum of positive squares in 2 ways, for example, as 7252249 + 3976036 = 2693^2 + 1994^2 .

It is a cyclic number.

It is not a de Polignac number, because 11228285 - 2⁸ = 11228029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122824 + ... + 1122833.

It is an arithmetic number, because the mean of its divisors is an integer number (3368487).

Almost surely, 2^11228285 is an apocalyptic number.

It is an amenable number.

11228285 is a deficient number, since it is larger than the sum of its proper divisors (2245663).

11228285 is an equidigital number, since it uses as much as digits as its factorization.

11228285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245662.

The product of its digits is 2560, while the sum is 29.

The square root of 11228285 is about 3350.8633215934. The cubic root of 11228285 is about 223.9259760187.

The spelling of 11228285 in words is "eleven million, two hundred twenty-eight thousand, two hundred eighty-five".