228538579 has 2 divisors, whose sum is σ = 228538580. Its totient is φ = 228538578.

The previous prime is 228538559. The next prime is 228538621. The reversal of 228538579 is 975835822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228538579 - 2⁷ = 228538451 is a prime.

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 (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114269289 + 114269290.

It is an arithmetic number, because the mean of its divisors is an integer number (114269290).

Almost surely, 2^228538579 is an apocalyptic number.

228538579 is a deficient number, since it is larger than the sum of its proper divisors (1).

228538579 is an equidigital number, since it uses as much as digits as its factorization.

228538579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 49.

The square root of 228538579 is about 15117.4924838744. The cubic root of 228538579 is about 611.3921255373.

The spelling of 228538579 in words is "two hundred twenty-eight million, five hundred thirty-eight thousand, five hundred seventy-nine".