1085163385 has 4 divisors (see below), whose sum is σ = 1302196068. Its totient is φ = 868130704.

The previous prime is 1085163379. The next prime is 1085163389. The reversal of 1085163385 is 5833615801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 448761856 + 636401529 = 21184^2 + 25227^2 .

It is a cyclic number.

It is not a de Polignac number, because 1085163385 - 2⁵ = 1085163353 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1085163389) 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, 108516334 + ... + 108516343.

It is an arithmetic number, because the mean of its divisors is an integer number (325549017).

Almost surely, 2^1085163385 is an apocalyptic number.

It is an amenable number.

1085163385 is a deficient number, since it is larger than the sum of its proper divisors (217032683).

1085163385 is an equidigital number, since it uses as much as digits as its factorization.

1085163385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217032682.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 1085163385 is about 32941.8181799366. The cubic root of 1085163385 is about 1027.6180181472.

The spelling of 1085163385 in words is "one billion, eighty-five million, one hundred sixty-three thousand, three hundred eighty-five".