1228163 has 2 divisors, whose sum is σ = 1228164. Its totient is φ = 1228162.

The previous prime is 1228159. The next prime is 1228181. The reversal of 1228163 is 3618221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1228163 - 2² = 1228159 is a prime.

It is a super-4 number, since 4×1228163⁴ (a number of 25 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (1228133) 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 as a sum of consecutive naturals, namely, 614081 + 614082.

It is an arithmetic number, because the mean of its divisors is an integer number (614082).

2^1228163 is an apocalyptic number.

1228163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228163 is an equidigital number, since it uses as much as digits as its factorization.

1228163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 23.

The square root of 1228163 is about 1108.2251576282. The cubic root of 1228163 is about 107.0907606201.

The spelling of 1228163 in words is "one million, two hundred twenty-eight thousand, one hundred sixty-three".