318641109 has 16 divisors (see below), whose sum is σ = 430465152. Its totient is φ = 209636928.

The previous prime is 318641101. The next prime is 318641111. The reversal of 318641109 is 901146813.

It is not a de Polignac number, because 318641109 - 2³ = 318641101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 318641109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318641101) 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 15 ways as a sum of consecutive naturals, for example, 96327 + ... + 99579.

It is an arithmetic number, because the mean of its divisors is an integer number (26904072).

Almost surely, 2^318641109 is an apocalyptic number.

It is an amenable number.

318641109 is a deficient number, since it is larger than the sum of its proper divisors (111824043).

318641109 is a wasteful number, since it uses less digits than its factorization.

318641109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 318641109 is about 17850.5212528934. The cubic root of 318641109 is about 683.0208087170.

The spelling of 318641109 in words is "three hundred eighteen million, six hundred forty-one thousand, one hundred nine".