317949109 has 8 divisors (see below), whose sum is σ = 322289280. Its totient is φ = 313634496.

The previous prime is 317949101. The next prime is 317949143. The reversal of 317949109 is 901949713.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 317949109 - 2³ = 317949101 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 (317949101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19357 + ... + 31789.

It is an arithmetic number, because the mean of its divisors is an integer number (40286160).

Almost surely, 2^317949109 is an apocalyptic number.

It is an amenable number.

317949109 is a deficient number, since it is larger than the sum of its proper divisors (4340171).

317949109 is a wasteful number, since it uses less digits than its factorization.

317949109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12779.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 317949109 is about 17831.1275302489. The cubic root of 317949109 is about 682.5260065139.

The spelling of 317949109 in words is "three hundred seventeen million, nine hundred forty-nine thousand, one hundred nine".