168045317 has 4 divisors (see below), whose sum is σ = 183322176. Its totient is φ = 152768460.

The previous prime is 168045307. The next prime is 168045331. The reversal of 168045317 is 713540861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168045317 - 2¹⁸ = 167783173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168045307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7638413 + ... + 7638434.

It is an arithmetic number, because the mean of its divisors is an integer number (45830544).

Almost surely, 2^168045317 is an apocalyptic number.

It is an amenable number.

168045317 is a deficient number, since it is larger than the sum of its proper divisors (15276859).

168045317 is a wasteful number, since it uses less digits than its factorization.

168045317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15276858.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 168045317 is about 12963.2294201715. The cubic root of 168045317 is about 551.8344443742.

The spelling of 168045317 in words is "one hundred sixty-eight million, forty-five thousand, three hundred seventeen".