3105394109 has 4 divisors (see below), whose sum is σ = 3105529404. Its totient is φ = 3105258816.

The previous prime is 3105394099. The next prime is 3105394111. The reversal of 3105394109 is 9014935013.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1645924900 + 1459469209 = 40570^2 + 38203^2 .

It is a cyclic number.

It is not a de Polignac number, because 3105394109 - 2⁸ = 3105393853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3105394309) 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 3 ways as a sum of consecutive naturals, for example, 23702 + ... + 82295.

It is an arithmetic number, because the mean of its divisors is an integer number (776382351).

Almost surely, 2^3105394109 is an apocalyptic number.

It is an amenable number.

3105394109 is a deficient number, since it is larger than the sum of its proper divisors (135295).

3105394109 is a wasteful number, since it uses less digits than its factorization.

3105394109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135294.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 3105394109 is about 55726.0631033630. The cubic root of 3105394109 is about 1458.9449607121.

The spelling of 3105394109 in words is "three billion, one hundred five million, three hundred ninety-four thousand, one hundred nine".