316505613 has 8 divisors (see below), whose sum is σ = 422338048. Its totient is φ = 210838464.

The previous prime is 316505603. The next prime is 316505653.

316505613 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 316505613 - 2²⁴ = 299728397 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 (316505603) 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 7 ways as a sum of consecutive naturals, for example, 36781 + ... + 44562.

It is an arithmetic number, because the mean of its divisors is an integer number (52792256).

Almost surely, 2^316505613 is an apocalyptic number.

It is an amenable number.

316505613 is a deficient number, since it is larger than the sum of its proper divisors (105832435).

316505613 is a wasteful number, since it uses less digits than its factorization.

316505613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82643.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 316505613 is about 17790.6046271621. The cubic root of 316505613 is about 681.4915450406.

The spelling of 316505613 in words is "three hundred sixteen million, five hundred five thousand, six hundred thirteen".