1105919999 has 4 divisors (see below), whose sum is σ = 1106832936. Its totient is φ = 1105007064.

The previous prime is 1105919993. The next prime is 1105920029. The reversal of 1105919999 is 9999195011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9999195011 = 13 ⋅769168847.

It is a cyclic number.

It is not a de Polignac number, because 1105919999 - 2⁸ = 1105919743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1105919999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105919993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454649 + ... + 457074.

It is an arithmetic number, because the mean of its divisors is an integer number (276708234).

Almost surely, 2^1105919999 is an apocalyptic number.

1105919999 is a deficient number, since it is larger than the sum of its proper divisors (912937).

1105919999 is an equidigital number, since it uses as much as digits as its factorization.

1105919999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912936.

The product of its (nonzero) digits is 295245, while the sum is 53.

The square root of 1105919999 is about 33255.3754902873. The cubic root of 1105919999 is about 1034.1286509036.

The spelling of 1105919999 in words is "one billion, one hundred five million, nine hundred nineteen thousand, nine hundred ninety-nine".