168062009 has 2 divisors, whose sum is σ = 168062010. Its totient is φ = 168062008.

The previous prime is 168061963. The next prime is 168062023. The reversal of 168062009 is 900260861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161671225 + 6390784 = 12715^2 + 2528^2 .

It is a cyclic number.

It is not a de Polignac number, because 168062009 - 2⁸ = 168061753 is a prime.

It is not a weakly prime, because it can be changed into another prime (168062039) 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, 84031004 + 84031005.

It is an arithmetic number, because the mean of its divisors is an integer number (84031005).

Almost surely, 2^168062009 is an apocalyptic number.

It is an amenable number.

168062009 is a deficient number, since it is larger than the sum of its proper divisors (1).

168062009 is an equidigital number, since it uses as much as digits as its factorization.

168062009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 168062009 is about 12963.8732252364. The cubic root of 168062009 is about 551.8527150719.

The spelling of 168062009 in words is "one hundred sixty-eight million, sixty-two thousand, nine".