316608505 has 8 divisors (see below), whose sum is σ = 381130632. Its totient is φ = 252486528.

The previous prime is 316608503. The next prime is 316608521. The reversal of 316608505 is 505806613.

It can be written as a sum of positive squares in 4 ways, for example, as 6285049 + 310323456 = 2507^2 + 17616^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 316608505 - 2¹ = 316608503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316608503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98292 + ... + 101461.

It is an arithmetic number, because the mean of its divisors is an integer number (47641329).

Almost surely, 2^316608505 is an apocalyptic number.

It is an amenable number.

316608505 is a deficient number, since it is larger than the sum of its proper divisors (64522127).

316608505 is a wasteful number, since it uses less digits than its factorization.

316608505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200075.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 316608505 is about 17793.4961432541. The cubic root of 316608505 is about 681.5653851539.

The spelling of 316608505 in words is "three hundred sixteen million, six hundred eight thousand, five hundred five".