11228539 has 8 divisors (see below), whose sum is σ = 13275360. Its totient is φ = 9292416.

The previous prime is 11228521. The next prime is 11228543. The reversal of 11228539 is 93582211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11228539 - 2¹⁵ = 11195771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11228539.

It is not an unprimeable number, because it can be changed into a prime (11228509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27454 + ... + 27859.

It is an arithmetic number, because the mean of its divisors is an integer number (1659420).

Almost surely, 2^11228539 is an apocalyptic number.

11228539 is a deficient number, since it is larger than the sum of its proper divisors (2046821).

11228539 is an equidigital number, since it uses as much as digits as its factorization.

11228539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55349.

The product of its digits is 4320, while the sum is 31.

The square root of 11228539 is about 3350.9012220595. The cubic root of 11228539 is about 223.9276645155.

The spelling of 11228539 in words is "eleven million, two hundred twenty-eight thousand, five hundred thirty-nine".