871232143 has 2 divisors, whose sum is σ = 871232144. Its totient is φ = 871232142.

The previous prime is 871232119. The next prime is 871232177. The reversal of 871232143 is 341232178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 871232143 - 2¹⁷ = 871101071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871232113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435616071 + 435616072.

It is an arithmetic number, because the mean of its divisors is an integer number (435616072).

Almost surely, 2^871232143 is an apocalyptic number.

871232143 is a deficient number, since it is larger than the sum of its proper divisors (1).

871232143 is an equidigital number, since it uses as much as digits as its factorization.

871232143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 871232143 is about 29516.6417974674. The cubic root of 871232143 is about 955.0907301206.

The spelling of 871232143 in words is "eight hundred seventy-one million, two hundred thirty-two thousand, one hundred forty-three".