1080112805 has 4 divisors (see below), whose sum is σ = 1296135372. Its totient is φ = 864090240.

The previous prime is 1080112783. The next prime is 1080112807. The reversal of 1080112805 is 5082110801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5082110801 = 60761 ⋅83641.

It can be written as a sum of positive squares in 2 ways, for example, as 232196644 + 847916161 = 15238^2 + 29119^2 .

It is not a de Polignac number, because 1080112805 - 2⁸ = 1080112549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080112807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108011276 + ... + 108011285.

It is an arithmetic number, because the mean of its divisors is an integer number (324033843).

Almost surely, 2^1080112805 is an apocalyptic number.

It is an amenable number.

1080112805 is a deficient number, since it is larger than the sum of its proper divisors (216022567).

1080112805 is an equidigital number, since it uses as much as digits as its factorization.

1080112805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216022566.

The product of its (nonzero) digits is 640, while the sum is 26.

The square root of 1080112805 is about 32865.0696789159. The cubic root of 1080112805 is about 1026.0212878433.

The spelling of 1080112805 in words is "one billion, eighty million, one hundred twelve thousand, eight hundred five".