228455317 has 2 divisors, whose sum is σ = 228455318. Its totient is φ = 228455316.

The previous prime is 228455303. The next prime is 228455341. The reversal of 228455317 is 713554822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133957476 + 94497841 = 11574^2 + 9721^2 .

It is a cyclic number.

It is not a de Polignac number, because 228455317 - 2⁷ = 228455189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228456317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114227658 + 114227659.

It is an arithmetic number, because the mean of its divisors is an integer number (114227659).

Almost surely, 2^228455317 is an apocalyptic number.

It is an amenable number.

228455317 is a deficient number, since it is larger than the sum of its proper divisors (1).

228455317 is an equidigital number, since it uses as much as digits as its factorization.

228455317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 37.

The square root of 228455317 is about 15114.7384032937. The cubic root of 228455317 is about 611.3178683234.

The spelling of 228455317 in words is "two hundred twenty-eight million, four hundred fifty-five thousand, three hundred seventeen".