168105271 has 2 divisors, whose sum is σ = 168105272. Its totient is φ = 168105270.

The previous prime is 168105251. The next prime is 168105383. The reversal of 168105271 is 172501861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168105271 - 2¹⁵ = 168072503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168105251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84052635 + 84052636.

It is an arithmetic number, because the mean of its divisors is an integer number (84052636).

Almost surely, 2^168105271 is an apocalyptic number.

168105271 is a deficient number, since it is larger than the sum of its proper divisors (1).

168105271 is an equidigital number, since it uses as much as digits as its factorization.

168105271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 168105271 is about 12965.5416778475. The cubic root of 168105271 is about 551.9000630797.

The spelling of 168105271 in words is "one hundred sixty-eight million, one hundred five thousand, two hundred seventy-one".