3109318 has 4 divisors (see below), whose sum is σ = 4663980. Its totient is φ = 1554658.

The previous prime is 3109307. The next prime is 3109319. The reversal of 3109318 is 8139013.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 3109292 and 3109301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3109319) 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 as a sum of consecutive naturals, namely, 777328 + ... + 777331.

It is an arithmetic number, because the mean of its divisors is an integer number (1165995).

Almost surely, 2^3109318 is an apocalyptic number.

3109318 is a deficient number, since it is larger than the sum of its proper divisors (1554662).

3109318 is a wasteful number, since it uses less digits than its factorization.

3109318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554661.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 3109318 is about 1763.3258348927. The cubic root of 3109318 is about 145.9559196381.

The spelling of 3109318 in words is "three million, one hundred nine thousand, three hundred eighteen".