228164197 has 2 divisors, whose sum is σ = 228164198. Its totient is φ = 228164196.

The previous prime is 228164173. The next prime is 228164213. The reversal of 228164197 is 791461822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182817441 + 45346756 = 13521^2 + 6734^2 .

It is a cyclic number.

It is not a de Polignac number, because 228164197 - 2¹¹ = 228162149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228164137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114082098 + 114082099.

It is an arithmetic number, because the mean of its divisors is an integer number (114082099).

Almost surely, 2^228164197 is an apocalyptic number.

It is an amenable number.

228164197 is a deficient number, since it is larger than the sum of its proper divisors (1).

228164197 is an equidigital number, since it uses as much as digits as its factorization.

228164197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 40.

The square root of 228164197 is about 15105.1049979800. The cubic root of 228164197 is about 611.0580910389.

The spelling of 228164197 in words is "two hundred twenty-eight million, one hundred sixty-four thousand, one hundred ninety-seven".