11138227 has 4 divisors (see below), whose sum is σ = 11149056. Its totient is φ = 11127400.

The previous prime is 11138203. The next prime is 11138243. The reversal of 11138227 is 72283111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 72283111 = 167 ⋅432833.

It is a cyclic number.

It is not a de Polignac number, because 11138227 - 2¹⁵ = 11105459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11138287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3688 + ... + 5989.

It is an arithmetic number, because the mean of its divisors is an integer number (2787264).

Almost surely, 2^11138227 is an apocalyptic number.

11138227 is a deficient number, since it is larger than the sum of its proper divisors (10829).

11138227 is an equidigital number, since it uses as much as digits as its factorization.

11138227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10828.

The product of its digits is 672, while the sum is 25.

The square root of 11138227 is about 3337.3982381490. The cubic root of 11138227 is about 223.3256919244.

The spelling of 11138227 in words is "eleven million, one hundred thirty-eight thousand, two hundred twenty-seven".