317140356605 has 4 divisors (see below), whose sum is σ = 380568427932. Its totient is φ = 253712285280.

The previous prime is 317140356569. The next prime is 317140356629. The reversal of 317140356605 is 506653041713.

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

It can be written as a sum of positive squares in 2 ways, for example, as 136737987961 + 180402368644 = 369781^2 + 424738^2 .

It is not a de Polignac number, because 317140356605 - 2⁶ = 317140356541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31714035656 + ... + 31714035665.

It is an arithmetic number, because the mean of its divisors is an integer number (95142106983).

Almost surely, 2^317140356605 is an apocalyptic number.

It is an amenable number.

317140356605 is a deficient number, since it is larger than the sum of its proper divisors (63428071327).

317140356605 is an equidigital number, since it uses as much as digits as its factorization.

317140356605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63428071326.

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 317140356605 in words is "three hundred seventeen billion, one hundred forty million, three hundred fifty-six thousand, six hundred five".