317917149 has 8 divisors (see below), whose sum is σ = 462424992. Its totient is φ = 192677040.

The previous prime is 317917129. The next prime is 317917151. The reversal of 317917149 is 941719713.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 317917149 - 2⁹ = 317916637 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 317917149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317917129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4816894 + ... + 4816959.

It is an arithmetic number, because the mean of its divisors is an integer number (57803124).

Almost surely, 2^317917149 is an apocalyptic number.

It is an amenable number.

317917149 is a deficient number, since it is larger than the sum of its proper divisors (144507843).

317917149 is a wasteful number, since it uses less digits than its factorization.

317917149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9633867.

The product of its digits is 47628, while the sum is 42.

The square root of 317917149 is about 17830.2313221113. The cubic root of 317917149 is about 682.5031367511.

The spelling of 317917149 in words is "three hundred seventeen million, nine hundred seventeen thousand, one hundred forty-nine".