168076913 has 2 divisors, whose sum is σ = 168076914. Its totient is φ = 168076912.

The previous prime is 168076901. The next prime is 168076921. The reversal of 168076913 is 319670861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160985344 + 7091569 = 12688^2 + 2663^2 .

It is a cyclic number.

It is not a de Polignac number, because 168076913 - 2⁴ = 168076897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (168076613) 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, 84038456 + 84038457.

It is an arithmetic number, because the mean of its divisors is an integer number (84038457).

Almost surely, 2^168076913 is an apocalyptic number.

It is an amenable number.

168076913 is a deficient number, since it is larger than the sum of its proper divisors (1).

168076913 is an equidigital number, since it uses as much as digits as its factorization.

168076913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 168076913 is about 12964.4480406996. The cubic root of 168076913 is about 551.8690276417.

The spelling of 168076913 in words is "one hundred sixty-eight million, seventy-six thousand, nine hundred thirteen".