168601373 has 2 divisors, whose sum is σ = 168601374. Its totient is φ = 168601372.

The previous prime is 168601369. The next prime is 168601387. The reversal of 168601373 is 373106861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166590649 + 2010724 = 12907^2 + 1418^2 .

It is a cyclic number.

It is not a de Polignac number, because 168601373 - 2² = 168601369 is a prime.

It is equal to p_9429137 and since 168601373 and 9429137 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168603373) 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, 84300686 + 84300687.

It is an arithmetic number, because the mean of its divisors is an integer number (84300687).

Almost surely, 2^168601373 is an apocalyptic number.

It is an amenable number.

168601373 is a deficient number, since it is larger than the sum of its proper divisors (1).

168601373 is an equidigital number, since it uses as much as digits as its factorization.

168601373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 168601373 is about 12984.6591406937. The cubic root of 168601373 is about 552.4424411281.

The spelling of 168601373 in words is "one hundred sixty-eight million, six hundred one thousand, three hundred seventy-three".