1085852805 has 16 divisors (see below), whose sum is σ = 1741296960. Its totient is φ = 577810688.

The previous prime is 1085852791. The next prime is 1085852819. The reversal of 1085852805 is 5082585801.

It is an interprime number because it is at equal distance from previous prime (1085852791) and next prime (1085852819).

It is a cyclic number.

It is not a de Polignac number, because 1085852805 - 2⁶ = 1085852741 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 75060 + ... + 88349.

It is an arithmetic number, because the mean of its divisors is an integer number (108831060).

Almost surely, 2^1085852805 is an apocalyptic number.

1085852805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1085852805 is a deficient number, since it is larger than the sum of its proper divisors (655444155).

1085852805 is a wasteful number, since it uses less digits than its factorization.

1085852805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163860.

The product of its (nonzero) digits is 128000, while the sum is 42.

The square root of 1085852805 is about 32952.2807253155. The cubic root of 1085852805 is about 1027.8355922763.

The spelling of 1085852805 in words is "one billion, eighty-five million, eight hundred fifty-two thousand, eight hundred five".