228144617 has 2 divisors, whose sum is σ = 228144618. Its totient is φ = 228144616.

The previous prime is 228144601. The next prime is 228144667. The reversal of 228144617 is 716441822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224670121 + 3474496 = 14989^2 + 1864^2 .

It is a cyclic number.

It is not a de Polignac number, because 228144617 - 2⁴ = 228144601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228144667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114072308 + 114072309.

It is an arithmetic number, because the mean of its divisors is an integer number (114072309).

Almost surely, 2^228144617 is an apocalyptic number.

It is an amenable number.

228144617 is a deficient number, since it is larger than the sum of its proper divisors (1).

228144617 is an equidigital number, since it uses as much as digits as its factorization.

228144617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 35.

The square root of 228144617 is about 15104.4568588215. The cubic root of 228144617 is about 611.0406111424.

The spelling of 228144617 in words is "two hundred twenty-eight million, one hundred forty-four thousand, six hundred seventeen".