228538559 has 2 divisors, whose sum is σ = 228538560. Its totient is φ = 228538558.

The previous prime is 228538549. The next prime is 228538579. The reversal of 228538559 is 955835822.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228538559 - 2⁴ = 228538543 is a prime.

It is a super-3 number, since 3×228538559³ (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228538549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114269279 + 114269280.

It is an arithmetic number, because the mean of its divisors is an integer number (114269280).

Almost surely, 2^228538559 is an apocalyptic number.

228538559 is a deficient number, since it is larger than the sum of its proper divisors (1).

228538559 is an equidigital number, since it uses as much as digits as its factorization.

228538559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864000, while the sum is 47.

The square root of 228538559 is about 15117.4918223891. The cubic root of 228538559 is about 611.3921077025.

The spelling of 228538559 in words is "two hundred twenty-eight million, five hundred thirty-eight thousand, five hundred fifty-nine".