228318158495197 has 2 divisors, whose sum is σ = 228318158495198. Its totient is φ = 228318158495196.

The previous prime is 228318158495191. The next prime is 228318158495257. The reversal of 228318158495197 is 791594851813822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207314095340836 + 21004063154361 = 14398406^2 + 4583019^2 .

It is a cyclic number.

It is not a de Polignac number, because 228318158495197 - 2¹¹ = 228318158493149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228318158495191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114159079247598 + 114159079247599.

It is an arithmetic number, because the mean of its divisors is an integer number (114159079247599).

Almost surely, 2^{228318158495197} is an apocalyptic number.

It is an amenable number.

228318158495197 is a deficient number, since it is larger than the sum of its proper divisors (1).

228318158495197 is an equidigital number, since it uses as much as digits as its factorization.

228318158495197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 348364800, while the sum is 73.

The spelling of 228318158495197 in words is "two hundred twenty-eight trillion, three hundred eighteen billion, one hundred fifty-eight million, four hundred ninety-five thousand, one hundred ninety-seven".