317309146187 has 4 divisors (see below), whose sum is σ = 346155432216. Its totient is φ = 288462860160.

The previous prime is 317309146183. The next prime is 317309146199. The reversal of 317309146187 is 781641903713.

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

It is a cyclic number.

It is not a de Polignac number, because 317309146187 - 2² = 317309146183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (317309146183) 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 3 ways as a sum of consecutive naturals, for example, 14423142998 + ... + 14423143019.

It is an arithmetic number, because the mean of its divisors is an integer number (86538858054).

Almost surely, 2^317309146187 is an apocalyptic number.

317309146187 is a deficient number, since it is larger than the sum of its proper divisors (28846286029).

317309146187 is a wasteful number, since it uses less digits than its factorization.

317309146187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28846286028.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 317309146187 in words is "three hundred seventeen billion, three hundred nine million, one hundred forty-six thousand, one hundred eighty-seven".