228140579 has 2 divisors, whose sum is σ = 228140580. Its totient is φ = 228140578.

The previous prime is 228140573. The next prime is 228140599. The reversal of 228140579 is 975041822.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228140579 is a prime.

It is not a weakly prime, because it can be changed into another prime (228140573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114070289 + 114070290.

It is an arithmetic number, because the mean of its divisors is an integer number (114070290).

Almost surely, 2^228140579 is an apocalyptic number.

228140579 is a deficient number, since it is larger than the sum of its proper divisors (1).

228140579 is an equidigital number, since it uses as much as digits as its factorization.

228140579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 228140579 is about 15104.3231890740. The cubic root of 228140579 is about 611.0370061241.

The spelling of 228140579 in words is "two hundred twenty-eight million, one hundred forty thousand, five hundred seventy-nine".