1085320805 has 8 divisors (see below), whose sum is σ = 1311010944. Its totient is φ = 862506000.

The previous prime is 1085320787. The next prime is 1085320811. The reversal of 1085320805 is 5080235801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1085320805 - 2³⁰ = 11578981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718001 + ... + 719510.

It is an arithmetic number, because the mean of its divisors is an integer number (163876368).

Almost surely, 2^1085320805 is an apocalyptic number.

It is an amenable number.

1085320805 is a deficient number, since it is larger than the sum of its proper divisors (225690139).

1085320805 is a wasteful number, since it uses less digits than its factorization.

1085320805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437667.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 1085320805 is about 32944.2074574575. The cubic root of 1085320805 is about 1027.6677064580.

The spelling of 1085320805 in words is "one billion, eighty-five million, three hundred twenty thousand, eight hundred five".