1916243105 has 16 divisors (see below), whose sum is σ = 2629822464. Its totient is φ = 1313079360.

The previous prime is 1916243093. The next prime is 1916243149. The reversal of 1916243105 is 5013426191.

It is not a de Polignac number, because 1916243105 - 2³⁰ = 842501281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33920 + ... + 70590.

It is an arithmetic number, because the mean of its divisors is an integer number (164363904).

Almost surely, 2^1916243105 is an apocalyptic number.

It is an amenable number.

1916243105 is a deficient number, since it is larger than the sum of its proper divisors (713579359).

1916243105 is a wasteful number, since it uses less digits than its factorization.

1916243105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38176.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1916243105 is about 43774.9141061407. The cubic root of 1916243105 is about 1242.0818101252.

Adding to 1916243105 its reverse (5013426191), we get a palindrome (6929669296).

The spelling of 1916243105 in words is "one billion, nine hundred sixteen million, two hundred forty-three thousand, one hundred five".