168693113 has 2 divisors, whose sum is σ = 168693114. Its totient is φ = 168693112.

The previous prime is 168693073. The next prime is 168693167. The reversal of 168693113 is 311396861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168298729 + 394384 = 12973^2 + 628^2 .

It is an emirp because it is prime and its reverse (311396861) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168693113 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 (168698113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84346556 + 84346557.

It is an arithmetic number, because the mean of its divisors is an integer number (84346557).

Almost surely, 2^168693113 is an apocalyptic number.

It is an amenable number.

168693113 is a deficient number, since it is larger than the sum of its proper divisors (1).

168693113 is an equidigital number, since it uses as much as digits as its factorization.

168693113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 38.

The square root of 168693113 is about 12988.1912905531. The cubic root of 168693113 is about 552.5426219653.

The spelling of 168693113 in words is "one hundred sixty-eight million, six hundred ninety-three thousand, one hundred thirteen".