317171717146 has 4 divisors (see below), whose sum is σ = 475757575722. Its totient is φ = 158585858572.

The previous prime is 317171717143. The next prime is 317171717147. The reversal of 317171717146 is 641717171713.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 195771736521 + 121399980625 = 442461^2 + 348425^2 .

It is a junction number, because it is equal to n+sod(n) for n = 317171717096 and 317171717105.

It is not an unprimeable number, because it can be changed into a prime (317171717143) 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 as a sum of consecutive naturals, namely, 79292929285 + ... + 79292929288.

Almost surely, 2^317171717146 is an apocalyptic number.

317171717146 is a deficient number, since it is larger than the sum of its proper divisors (158585858576).

317171717146 is a wasteful number, since it uses less digits than its factorization.

317171717146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158585858575.

The product of its digits is 172872, while the sum is 46.

Adding to 317171717146 its reverse (641717171713), we get a palindrome (958888888859).

The spelling of 317171717146 in words is "three hundred seventeen billion, one hundred seventy-one million, seven hundred seventeen thousand, one hundred forty-six".