1105243305 has 16 divisors (see below), whose sum is σ = 1806015744. Its totient is φ = 576920960.

The previous prime is 1105243277. The next prime is 1105243309. The reversal of 1105243305 is 5033425011.

It is not a de Polignac number, because 1105243305 - 2⁷ = 1105243177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1105243309) 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 in 15 ways as a sum of consecutive naturals, for example, 783156 + ... + 784565.

It is an arithmetic number, because the mean of its divisors is an integer number (112875984).

Almost surely, 2^1105243305 is an apocalyptic number.

1105243305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1105243305 is a deficient number, since it is larger than the sum of its proper divisors (700772439).

1105243305 is a wasteful number, since it uses less digits than its factorization.

1105243305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567776.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1105243305 is about 33245.1997286826. The cubic root of 1105243305 is about 1033.9176858452.

Adding to 1105243305 its reverse (5033425011), we get a palindrome (6138668316).

The spelling of 1105243305 in words is "one billion, one hundred five million, two hundred forty-three thousand, three hundred five".