316136391 has 8 divisors (see below), whose sum is σ = 422104320. Its totient is φ = 210463032.

The previous prime is 316136389. The next prime is 316136413. The reversal of 316136391 is 193631613.

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

It is not a de Polignac number, because 316136391 - 2¹ = 316136389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316136321) 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, 71125 + ... + 75438.

It is an arithmetic number, because the mean of its divisors is an integer number (52763040).

Almost surely, 2^316136391 is an apocalyptic number.

316136391 is a deficient number, since it is larger than the sum of its proper divisors (105967929).

316136391 is a wasteful number, since it uses less digits than its factorization.

316136391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147285.

The product of its digits is 8748, while the sum is 33.

The square root of 316136391 is about 17780.2247173651. The cubic root of 316136391 is about 681.2264422345.

The spelling of 316136391 in words is "three hundred sixteen million, one hundred thirty-six thousand, three hundred ninety-one".