316144391 has 8 divisors (see below), whose sum is σ = 329537520. Its totient is φ = 303006528.

The previous prime is 316144379. The next prime is 316144397. The reversal of 316144391 is 193441613.

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 316144391 - 2¹⁰ = 316143367 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 (316144397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61286 + ... + 66243.

It is an arithmetic number, because the mean of its divisors is an integer number (41192190).

Almost surely, 2^316144391 is an apocalyptic number.

316144391 is a deficient number, since it is larger than the sum of its proper divisors (13393129).

316144391 is a wasteful number, since it uses less digits than its factorization.

316144391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127633.

The product of its digits is 7776, while the sum is 32.

The square root of 316144391 is about 17780.4496849770. The cubic root of 316144391 is about 681.2321884522.

The spelling of 316144391 in words is "three hundred sixteen million, one hundred forty-four thousand, three hundred ninety-one".