316139747 has 8 divisors (see below), whose sum is σ = 394148352. Its totient is φ = 246342600.

The previous prime is 316139743. The next prime is 316139773. The reversal of 316139747 is 747931613.

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

It is not a de Polignac number, because 316139747 - 2² = 316139743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316139743) 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, 2052779 + ... + 2052932.

It is an arithmetic number, because the mean of its divisors is an integer number (49268544).

Almost surely, 2^316139747 is an apocalyptic number.

316139747 is a deficient number, since it is larger than the sum of its proper divisors (78008605).

316139747 is a wasteful number, since it uses less digits than its factorization.

316139747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105729.

The product of its digits is 95256, while the sum is 41.

The square root of 316139747 is about 17780.3190916249. The cubic root of 316139747 is about 681.2288527846.

The spelling of 316139747 in words is "three hundred sixteen million, one hundred thirty-nine thousand, seven hundred forty-seven".