168159227 has 2 divisors, whose sum is σ = 168159228. Its totient is φ = 168159226.

The previous prime is 168159209. The next prime is 168159239. The reversal of 168159227 is 722951861.

It is a strong prime.

It is an emirp because it is prime and its reverse (722951861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168159227 - 2¹² = 168155131 is a prime.

It is not a weakly prime, because it can be changed into another prime (168159527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84079613 + 84079614.

It is an arithmetic number, because the mean of its divisors is an integer number (84079614).

Almost surely, 2^168159227 is an apocalyptic number.

168159227 is a deficient number, since it is larger than the sum of its proper divisors (1).

168159227 is an equidigital number, since it uses as much as digits as its factorization.

168159227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 41.

The square root of 168159227 is about 12967.6222569907. The cubic root of 168159227 is about 551.9591037317.

The spelling of 168159227 in words is "one hundred sixty-eight million, one hundred fifty-nine thousand, two hundred twenty-seven".