317135625845 has 4 divisors (see below), whose sum is σ = 380562751020. Its totient is φ = 253708500672.

The previous prime is 317135625797. The next prime is 317135625857. The reversal of 317135625845 is 548526531713.

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 64715798449 + 252419827396 = 254393^2 + 502414^2 .

It is a cyclic number.

It is not a de Polignac number, because 317135625845 - 2¹² = 317135621749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 317135625793 and 317135625802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31713562580 + ... + 31713562589.

It is an arithmetic number, because the mean of its divisors is an integer number (95140687755).

Almost surely, 2^317135625845 is an apocalyptic number.

It is an amenable number.

317135625845 is a deficient number, since it is larger than the sum of its proper divisors (63427125175).

317135625845 is an equidigital number, since it uses as much as digits as its factorization.

317135625845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63427125174.

The product of its digits is 3024000, while the sum is 50.

The spelling of 317135625845 in words is "three hundred seventeen billion, one hundred thirty-five million, six hundred twenty-five thousand, eight hundred forty-five".