1105231805 has 16 divisors (see below), whose sum is σ = 1397081280. Its totient is φ = 837050112.

The previous prime is 1105231759. The next prime is 1105231817. The reversal of 1105231805 is 5081325011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1105231805 - 2⁸ = 1105231549 is a prime.

It is a Curzon number.

It is a congruent 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, 165542 + ... + 172088.

It is an arithmetic number, because the mean of its divisors is an integer number (87317580).

Almost surely, 2^1105231805 is an apocalyptic number.

It is an amenable number.

1105231805 is a deficient number, since it is larger than the sum of its proper divisors (291849475).

1105231805 is a wasteful number, since it uses less digits than its factorization.

1105231805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8348.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1105231805 is about 33245.0267709322. The cubic root of 1105231805 is about 1033.9140998793.

Adding to 1105231805 its reverse (5081325011), we get a palindrome (6186556816).

The spelling of 1105231805 in words is "one billion, one hundred five million, two hundred thirty-one thousand, eight hundred five".