228275317 has 2 divisors, whose sum is σ = 228275318. Its totient is φ = 228275316.

The previous prime is 228275309. The next prime is 228275323. The reversal of 228275317 is 713572822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192682161 + 35593156 = 13881^2 + 5966^2 .

It is a cyclic number.

It is not a de Polignac number, because 228275317 - 2³ = 228275309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228275357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114137658 + 114137659.

It is an arithmetic number, because the mean of its divisors is an integer number (114137659).

Almost surely, 2^228275317 is an apocalyptic number.

It is an amenable number.

228275317 is a deficient number, since it is larger than the sum of its proper divisors (1).

228275317 is an equidigital number, since it uses as much as digits as its factorization.

228275317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 228275317 is about 15108.7827769149. The cubic root of 228275317 is about 611.1572736393.

The spelling of 228275317 in words is "two hundred twenty-eight million, two hundred seventy-five thousand, three hundred seventeen".