1085532571 has 4 divisors (see below), whose sum is σ = 1085600232. Its totient is φ = 1085464912.

The previous prime is 1085532559. The next prime is 1085532589. The reversal of 1085532571 is 1752355801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085532571 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1085532571.

It is not an unprimeable number, because it can be changed into a prime (1085532551) 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, 5400 + ... + 46906.

It is an arithmetic number, because the mean of its divisors is an integer number (271400058).

Almost surely, 2^1085532571 is an apocalyptic number.

1085532571 is a deficient number, since it is larger than the sum of its proper divisors (67661).

1085532571 is an equidigital number, since it uses as much as digits as its factorization.

1085532571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67660.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 1085532571 is about 32947.4213103241. The cubic root of 1085532571 is about 1027.7345410522.

The spelling of 1085532571 in words is "one billion, eighty-five million, five hundred thirty-two thousand, five hundred seventy-one".