1159871 has 4 divisors (see below), whose sum is σ = 1164744. Its totient is φ = 1155000.

The previous prime is 1159861. The next prime is 1159877. The reversal of 1159871 is 1789511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1789511 = 907 ⋅1973.

It is a cyclic number.

It is not a de Polignac number, because 1159871 - 2¹⁰ = 1158847 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2060 + ... + 2561.

It is an arithmetic number, because the mean of its divisors is an integer number (291186).

2^1159871 is an apocalyptic number.

1159871 is a deficient number, since it is larger than the sum of its proper divisors (4873).

1159871 is an equidigital number, since it uses as much as digits as its factorization.

1159871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872.

The product of its digits is 2520, while the sum is 32.

The square root of 1159871 is about 1076.9730730153. The cubic root of 1159871 is about 105.0678624041.

The spelling of 1159871 in words is "one million, one hundred fifty-nine thousand, eight hundred seventy-one".