227161 has 8 divisors (see below), whose sum is σ = 251424. Its totient is φ = 203520.

The previous prime is 227159. The next prime is 227167. The reversal of 227161 is 161722.

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

It is a cyclic number.

It is not a de Polignac number, because 227161 - 2¹ = 227159 is a prime.

It is an Ulam number.

It is a Duffinian number.

227161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (227167) 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, 1081 + ... + 1273.

It is an arithmetic number, because the mean of its divisors is an integer number (31428).

2²²⁷¹⁶¹ is an apocalyptic number.

It is an amenable number.

227161 is a deficient number, since it is larger than the sum of its proper divisors (24263).

227161 is a wasteful number, since it uses less digits than its factorization.

227161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

The product of its digits is 168, while the sum is 19.

The square root of 227161 is about 476.6140996655. The cubic root of 227161 is about 61.0161204371.

Adding to 227161 its reverse (161722), we get a palindrome (388883).

It can be divided in two parts, 2271 and 61, that added together give a palindrome (2332).

The spelling of 227161 in words is "two hundred twenty-seven thousand, one hundred sixty-one".