1085527871 has 4 divisors (see below), whose sum is σ = 1088106744. Its totient is φ = 1082949000.

The previous prime is 1085527829. The next prime is 1085527909. The reversal of 1085527871 is 1787255801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1787255801 = 18443 ⋅96907.

It is a cyclic number.

It is not a de Polignac number, because 1085527871 - 2²⁶ = 1018419007 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 (1085527271) 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, 1288805 + ... + 1289646.

It is an arithmetic number, because the mean of its divisors is an integer number (272026686).

Almost surely, 2^1085527871 is an apocalyptic number.

1085527871 is a deficient number, since it is larger than the sum of its proper divisors (2578873).

1085527871 is an equidigital number, since it uses as much as digits as its factorization.

1085527871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578872.

The product of its (nonzero) digits is 156800, while the sum is 44.

The square root of 1085527871 is about 32947.3499844828. The cubic root of 1085527871 is about 1027.7330577989.

The spelling of 1085527871 in words is "one billion, eighty-five million, five hundred twenty-seven thousand, eight hundred seventy-one".