316125588517 has 4 divisors (see below), whose sum is σ = 321307975276. Its totient is φ = 310943201760.

The previous prime is 316125588509. The next prime is 316125588523. The reversal of 316125588517 is 715885521613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 715885521613 = 73 ⋅9806650981.

It can be written as a sum of positive squares in 2 ways, for example, as 36920085316 + 279205503201 = 192146^2 + 528399^2 .

It is a cyclic number.

It is not a de Polignac number, because 316125588517 - 2³ = 316125588509 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 (316125588217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2591193288 + ... + 2591193409.

It is an arithmetic number, because the mean of its divisors is an integer number (80326993819).

Almost surely, 2^316125588517 is an apocalyptic number.

It is an amenable number.

316125588517 is a deficient number, since it is larger than the sum of its proper divisors (5182386759).

316125588517 is an equidigital number, since it uses as much as digits as its factorization.

316125588517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182386758.

The product of its digits is 2016000, while the sum is 52.

The spelling of 316125588517 in words is "three hundred sixteen billion, one hundred twenty-five million, five hundred eighty-eight thousand, five hundred seventeen".