223665227 has 2 divisors, whose sum is σ = 223665228. Its totient is φ = 223665226.

The previous prime is 223665181. The next prime is 223665251. The reversal of 223665227 is 722566322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223665227 - 2²⁰ = 222616651 is a prime.

It is a super-2 number, since 2×223665227² = 100052267537923058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (223665287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111832613 + 111832614.

It is an arithmetic number, because the mean of its divisors is an integer number (111832614).

Almost surely, 2^223665227 is an apocalyptic number.

223665227 is a deficient number, since it is larger than the sum of its proper divisors (1).

223665227 is an equidigital number, since it uses as much as digits as its factorization.

223665227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 35.

The square root of 223665227 is about 14955.4413843256. The cubic root of 223665227 is about 607.0150935273.

The spelling of 223665227 in words is "two hundred twenty-three million, six hundred sixty-five thousand, two hundred twenty-seven".