1085506085 has 8 divisors (see below), whose sum is σ = 1315505016. Its totient is φ = 859806400.

The previous prime is 1085506027. The next prime is 1085506087. The reversal of 1085506085 is 5806055801.

It can be written as a sum of positive squares in 4 ways, for example, as 763195876 + 322310209 = 27626^2 + 17953^2 .

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

It is not a de Polignac number, because 1085506085 - 2⁶ = 1085506021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085506087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1074254 + ... + 1075263.

It is an arithmetic number, because the mean of its divisors is an integer number (164438127).

Almost surely, 2^1085506085 is an apocalyptic number.

It is an amenable number.

1085506085 is a deficient number, since it is larger than the sum of its proper divisors (229998931).

1085506085 is a wasteful number, since it uses less digits than its factorization.

1085506085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149623.

The product of its (nonzero) digits is 48000, while the sum is 38.

The square root of 1085506085 is about 32947.0193644281. The cubic root of 1085506085 is about 1027.7261823906.

The spelling of 1085506085 in words is "one billion, eighty-five million, five hundred six thousand, eighty-five".