1085559 has 8 divisors (see below), whose sum is σ = 1478400. Its totient is φ = 708216.

The previous prime is 1085551. The next prime is 1085587. The reversal of 1085559 is 9555801.

1085559 = T₁₉₁ + T₁₉₂ + ... + T₂₃₇.

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

It is not a de Polignac number, because 1085559 - 2³ = 1085551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3709 + ... + 3990.

It is an arithmetic number, because the mean of its divisors is an integer number (184800).

2^1085559 is an apocalyptic number.

1085559 is a deficient number, since it is larger than the sum of its proper divisors (392841).

1085559 is an equidigital number, since it uses as much as digits as its factorization.

1085559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7749.

The product of its (nonzero) digits is 9000, while the sum is 33.

The square root of 1085559 is about 1041.9016268343. The cubic root of 1085559 is about 102.7742881590.

The spelling of 1085559 in words is "one million, eighty-five thousand, five hundred fifty-nine".