871149 has 4 divisors (see below), whose sum is σ = 1161536. Its totient is φ = 580764.

The previous prime is 871147. The next prime is 871159. The reversal of 871149 is 941178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 871149 - 2¹ = 871147 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 871149.

It is not an unprimeable number, because it can be changed into a prime (871147) 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, 145189 + ... + 145194.

It is an arithmetic number, because the mean of its divisors is an integer number (290384).

2⁸⁷¹¹⁴⁹ is an apocalyptic number.

It is an amenable number.

871149 is a deficient number, since it is larger than the sum of its proper divisors (290387).

871149 is a wasteful number, since it uses less digits than its factorization.

871149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290386.

The product of its digits is 2016, while the sum is 30.

The square root of 871149 is about 933.3536307317. The cubic root of 871149 is about 95.5060347237.

The spelling of 871149 in words is "eight hundred seventy-one thousand, one hundred forty-nine".