168044971 has 2 divisors, whose sum is σ = 168044972. Its totient is φ = 168044970.

The previous prime is 168044957. The next prime is 168044993. The reversal of 168044971 is 179440861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168044971 - 2¹¹ = 168042923 is a prime.

It is a super-2 number, since 2×168044971² = 56478224556781682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (168044941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84022485 + 84022486.

It is an arithmetic number, because the mean of its divisors is an integer number (84022486).

Almost surely, 2^168044971 is an apocalyptic number.

168044971 is a deficient number, since it is larger than the sum of its proper divisors (1).

168044971 is an equidigital number, since it uses as much as digits as its factorization.

168044971 is an odious number, because the sum of its binary digits is odd.

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

The square root of 168044971 is about 12963.2160747247. The cubic root of 168044971 is about 551.8340656374.

The spelling of 168044971 in words is "one hundred sixty-eight million, forty-four thousand, nine hundred seventy-one".