228016105 has 4 divisors (see below), whose sum is σ = 273619332. Its totient is φ = 182412880.

The previous prime is 228016099. The next prime is 228016141. The reversal of 228016105 is 501610822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501610822 = 2 ⋅250805411.

It can be written as a sum of positive squares in 2 ways, for example, as 160250281 + 67765824 = 12659^2 + 8232^2 .

It is not a de Polignac number, because 228016105 - 2³ = 228016097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228016105.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 22801606 + ... + 22801615.

It is an arithmetic number, because the mean of its divisors is an integer number (68404833).

Almost surely, 2^228016105 is an apocalyptic number.

It is an amenable number.

228016105 is a deficient number, since it is larger than the sum of its proper divisors (45603227).

228016105 is an equidigital number, since it uses as much as digits as its factorization.

228016105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45603226.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 228016105 is about 15100.2021509647. The cubic root of 228016105 is about 610.9258581975.

Adding to 228016105 its reverse (501610822), we get a palindrome (729626927).

The spelling of 228016105 in words is "two hundred twenty-eight million, sixteen thousand, one hundred five".