316868009 has 4 divisors (see below), whose sum is σ = 317004804. Its totient is φ = 316731216.

The previous prime is 316868003. The next prime is 316868029. The reversal of 316868009 is 900868613.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 900868613 = 53 ⋅16997521.

It can be written as a sum of positive squares in 2 ways, for example, as 135373225 + 181494784 = 11635^2 + 13472^2 .

It is a cyclic number.

It is not a de Polignac number, because 316868009 - 2⁸ = 316867753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316868003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64862 + ... + 69575.

It is an arithmetic number, because the mean of its divisors is an integer number (79251201).

Almost surely, 2^316868009 is an apocalyptic number.

It is an amenable number.

316868009 is a deficient number, since it is larger than the sum of its proper divisors (136795).

316868009 is a wasteful number, since it uses less digits than its factorization.

316868009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136794.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 316868009 is about 17800.7867522759. The cubic root of 316868009 is about 681.7515463384.

The spelling of 316868009 in words is "three hundred sixteen million, eight hundred sixty-eight thousand, nine".