228140219 has 2 divisors, whose sum is σ = 228140220. Its totient is φ = 228140218.

The previous prime is 228140207. The next prime is 228140251. The reversal of 228140219 is 912041822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228140219 - 2¹⁶ = 228074683 is a prime.

It is a super-2 number, since 2×228140219² = 104095919050735922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228140191 and 228140200.

It is not a weakly prime, because it can be changed into another prime (228140279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114070109 + 114070110.

It is an arithmetic number, because the mean of its divisors is an integer number (114070110).

Almost surely, 2^228140219 is an apocalyptic number.

228140219 is a deficient number, since it is larger than the sum of its proper divisors (1).

228140219 is an equidigital number, since it uses as much as digits as its factorization.

228140219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 228140219 is about 15104.3112719515. The cubic root of 228140219 is about 611.0366847237.

The spelling of 228140219 in words is "two hundred twenty-eight million, one hundred forty thousand, two hundred nineteen".