1105919993 has 2 divisors, whose sum is σ = 1105919994. Its totient is φ = 1105919992.

The previous prime is 1105919977. The next prime is 1105920029. The reversal of 1105919993 is 3999195011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 786690304 + 319229689 = 28048^2 + 17867^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105919993 - 2⁴ = 1105919977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1105919953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552959996 + 552959997.

It is an arithmetic number, because the mean of its divisors is an integer number (552959997).

Almost surely, 2^1105919993 is an apocalyptic number.

It is an amenable number.

1105919993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105919993 is an equidigital number, since it uses as much as digits as its factorization.

1105919993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98415, while the sum is 47.

The square root of 1105919993 is about 33255.3754000763. The cubic root of 1105919993 is about 1034.1286490334.

The spelling of 1105919993 in words is "one billion, one hundred five million, nine hundred nineteen thousand, nine hundred ninety-three".