226227161 has 4 divisors (see below), whose sum is σ = 230495652. Its totient is φ = 221958672.

The previous prime is 226227151. The next prime is 226227163. The reversal of 226227161 is 161722622.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 208629136 + 17598025 = 14444^2 + 4195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226227161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (226227163) 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, 2134166 + ... + 2134271.

It is an arithmetic number, because the mean of its divisors is an integer number (57623913).

Almost surely, 2^226227161 is an apocalyptic number.

It is an amenable number.

226227161 is a deficient number, since it is larger than the sum of its proper divisors (4268491).

226227161 is an equidigital number, since it uses as much as digits as its factorization.

226227161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268490.

The product of its digits is 4032, while the sum is 29.

The square root of 226227161 is about 15040.8497432825. The cubic root of 226227161 is about 609.3239495818.

Adding to 226227161 its reverse (161722622), we get a palindrome (387949783).

The spelling of 226227161 in words is "two hundred twenty-six million, two hundred twenty-seven thousand, one hundred sixty-one".