1085399535 has 32 divisors (see below), whose sum is σ = 1925591040. Its totient is φ = 517622400.

The previous prime is 1085399521. The next prime is 1085399563. The reversal of 1085399535 is 5359935801.

It is a happy number.

It is not a de Polignac number, because 1085399535 - 2¹⁰ = 1085398511 is a prime.

It is a super-3 number, since 3×1085399535³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43855 + ... + 63984.

It is an arithmetic number, because the mean of its divisors is an integer number (60174720).

Almost surely, 2^1085399535 is an apocalyptic number.

1085399535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1085399535 is a deficient number, since it is larger than the sum of its proper divisors (840191505).

1085399535 is a wasteful number, since it uses less digits than its factorization.

1085399535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107919.

The product of its (nonzero) digits is 729000, while the sum is 48.

The square root of 1085399535 is about 32945.4023347720. The cubic root of 1085399535 is about 1027.6925551239.

The spelling of 1085399535 in words is "one billion, eighty-five million, three hundred ninety-nine thousand, five hundred thirty-five".