168335197 has 2 divisors, whose sum is σ = 168335198. Its totient is φ = 168335196.

The previous prime is 168335191. The next prime is 168335203. The reversal of 168335197 is 791533861.

It is a balanced prime because it is at equal distance from previous prime (168335191) and next prime (168335203).

It can be written as a sum of positive squares in only one way, i.e., 165739876 + 2595321 = 12874^2 + 1611^2 .

It is an emirp because it is prime and its reverse (791533861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168335197 - 2¹⁵ = 168302429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168335191) 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, 84167598 + 84167599.

It is an arithmetic number, because the mean of its divisors is an integer number (84167599).

Almost surely, 2^168335197 is an apocalyptic number.

It is an amenable number.

168335197 is a deficient number, since it is larger than the sum of its proper divisors (1).

168335197 is an equidigital number, since it uses as much as digits as its factorization.

168335197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 168335197 is about 12974.4054584401. The cubic root of 168335197 is about 552.1515689029.

The spelling of 168335197 in words is "one hundred sixty-eight million, three hundred thirty-five thousand, one hundred ninety-seven".