11865227 has 4 divisors (see below), whose sum is σ = 12943896. Its totient is φ = 10786560.

The previous prime is 11865223. The next prime is 11865233. The reversal of 11865227 is 72256811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72256811 = 11 ⋅6568801.

It is a cyclic number.

It is not a de Polignac number, because 11865227 - 2² = 11865223 is a prime.

It is a super-2 number, since 2×11865227² = 281567223523058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11865193 and 11865202.

It is not an unprimeable number, because it can be changed into a prime (11865221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539318 + ... + 539339.

It is an arithmetic number, because the mean of its divisors is an integer number (3235974).

Almost surely, 2^11865227 is an apocalyptic number.

11865227 is a deficient number, since it is larger than the sum of its proper divisors (1078669).

11865227 is a wasteful number, since it uses less digits than its factorization.

11865227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078668.

The product of its digits is 6720, while the sum is 32.

The square root of 11865227 is about 3444.5938802709. The cubic root of 11865227 is about 228.0825275780.

The spelling of 11865227 in words is "eleven million, eight hundred sixty-five thousand, two hundred twenty-seven".