228716219 has 2 divisors, whose sum is σ = 228716220. Its totient is φ = 228716218.

The previous prime is 228716179. The next prime is 228716231. The reversal of 228716219 is 912617822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228716219 - 2¹² = 228712123 is a prime.

It is a super-2 number, since 2×228716219² = 104622217667311922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228716239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114358109 + 114358110.

It is an arithmetic number, because the mean of its divisors is an integer number (114358110).

Almost surely, 2^228716219 is an apocalyptic number.

228716219 is a deficient number, since it is larger than the sum of its proper divisors (1).

228716219 is an equidigital number, since it uses as much as digits as its factorization.

228716219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 228716219 is about 15123.3666556095. The cubic root of 228716219 is about 611.5504935031.

The spelling of 228716219 in words is "two hundred twenty-eight million, seven hundred sixteen thousand, two hundred nineteen".