316143242 has 8 divisors (see below), whose sum is σ = 499173600. Its totient is φ = 149752044.

The previous prime is 316143221. The next prime is 316143253. The reversal of 316143242 is 242341613.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4159742 + ... + 4159817.

It is an arithmetic number, because the mean of its divisors is an integer number (62396700).

Almost surely, 2^316143242 is an apocalyptic number.

316143242 is a deficient number, since it is larger than the sum of its proper divisors (183030358).

316143242 is a wasteful number, since it uses less digits than its factorization.

316143242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8319580.

The product of its digits is 3456, while the sum is 26.

The square root of 316143242 is about 17780.4173741788. The cubic root of 316143242 is about 681.2313631576.

Adding to 316143242 its reverse (242341613), we get a palindrome (558484855).

The spelling of 316143242 in words is "three hundred sixteen million, one hundred forty-three thousand, two hundred forty-two".