1085532853 has 4 divisors (see below), whose sum is σ = 1095491980. Its totient is φ = 1075573728.

The previous prime is 1085532829. The next prime is 1085532857. The reversal of 1085532853 is 3582355801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3582355801 = 181 ⋅19792021.

It can be written as a sum of positive squares in 2 ways, for example, as 852756804 + 232776049 = 29202^2 + 15257^2 .

It is a cyclic number.

It is not a de Polignac number, because 1085532853 - 2⁹ = 1085532341 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 (1085532857) 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, 4979400 + ... + 4979617.

It is an arithmetic number, because the mean of its divisors is an integer number (273872995).

Almost surely, 2^1085532853 is an apocalyptic number.

It is an amenable number.

1085532853 is a deficient number, since it is larger than the sum of its proper divisors (9959127).

1085532853 is an equidigital number, since it uses as much as digits as its factorization.

1085532853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9959126.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 1085532853 is about 32947.4255898697. The cubic root of 1085532853 is about 1027.7346300473.

The spelling of 1085532853 in words is "one billion, eighty-five million, five hundred thirty-two thousand, eight hundred fifty-three".