227163121 has 2 divisors, whose sum is σ = 227163122. Its totient is φ = 227163120.

The previous prime is 227163089. The next prime is 227163127. The reversal of 227163121 is 121361722.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173712400 + 53450721 = 13180^2 + 7311^2 .

It is a cyclic number.

It is not a de Polignac number, because 227163121 - 2⁵ = 227163089 is a prime.

It is not a weakly prime, because it can be changed into another prime (227163127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113581560 + 113581561.

It is an arithmetic number, because the mean of its divisors is an integer number (113581561).

Almost surely, 2^227163121 is an apocalyptic number.

It is an amenable number.

227163121 is a deficient number, since it is larger than the sum of its proper divisors (1).

227163121 is an equidigital number, since it uses as much as digits as its factorization.

227163121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 25.

The square root of 227163121 is about 15071.9315616811. The cubic root of 227163121 is about 610.1631033886.

The spelling of 227163121 in words is "two hundred twenty-seven million, one hundred sixty-three thousand, one hundred twenty-one".