1105812005 has 32 divisors (see below), whose sum is σ = 1481379840. Its totient is φ = 788520960.

The previous prime is 1105811999. The next prime is 1105812031. The reversal of 1105812005 is 5002185011.

It is a de Polignac number, because none of the positive numbers 2^k-1105812005 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 31 ways as a sum of consecutive naturals, for example, 119381 + ... + 128309.

It is an arithmetic number, because the mean of its divisors is an integer number (46293120).

Almost surely, 2^1105812005 is an apocalyptic number.

It is an amenable number.

1105812005 is a deficient number, since it is larger than the sum of its proper divisors (375567835).

1105812005 is a wasteful number, since it uses less digits than its factorization.

1105812005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9029.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 1105812005 is about 33253.7517432244. The cubic root of 1105812005 is about 1034.0949886360.

Adding to 1105812005 its reverse (5002185011), we get a palindrome (6107997016).

The spelling of 1105812005 in words is "one billion, one hundred five million, eight hundred twelve thousand, five".