871131 has 32 divisors (see below), whose sum is σ = 1382400. Its totient is φ = 483840.

The previous prime is 871103. The next prime is 871147. The reversal of 871131 is 131178.

It is not a de Polignac number, because 871131 - 2¹⁴ = 854747 is a prime.

It is a super-2 number, since 2×871131² = 1517738438322, which contains 22 as substring.

871131 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 871098 and 871107.

It is not an unprimeable number, because it can be changed into a prime (871181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28086 + ... + 28116.

It is an arithmetic number, because the mean of its divisors is an integer number (43200).

2⁸⁷¹¹³¹ is an apocalyptic number.

871131 is a deficient number, since it is larger than the sum of its proper divisors (511269).

871131 is a wasteful number, since it uses less digits than its factorization.

871131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99.

The product of its digits is 168, while the sum is 21.

The square root of 871131 is about 933.3439880344. The cubic root of 871131 is about 95.5053769256.

The spelling of 871131 in words is "eight hundred seventy-one thousand, one hundred thirty-one".