42228163 has 2 divisors, whose sum is σ = 42228164. Its totient is φ = 42228162.

The previous prime is 42228143. The next prime is 42228181. The reversal of 42228163 is 36182224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42228163 - 2⁹ = 42227651 is a prime.

It is equal to p_2560645 and since 42228163 and 2560645 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42228103) 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, 21114081 + 21114082.

It is an arithmetic number, because the mean of its divisors is an integer number (21114082).

Almost surely, 2^42228163 is an apocalyptic number.

42228163 is a deficient number, since it is larger than the sum of its proper divisors (1).

42228163 is an equidigital number, since it uses as much as digits as its factorization.

42228163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 28.

The square root of 42228163 is about 6498.3200136651. The cubic root of 42228163 is about 348.2309730804.

The spelling of 42228163 in words is "forty-two million, two hundred twenty-eight thousand, one hundred sixty-three".