872143 has 2 divisors, whose sum is σ = 872144. Its totient is φ = 872142.

The previous prime is 872141. The next prime is 872149. The reversal of 872143 is 341278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 872143 - 2¹ = 872141 is a prime.

Together with 872141, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872141) 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 as a sum of consecutive naturals, namely, 436071 + 436072.

It is an arithmetic number, because the mean of its divisors is an integer number (436072).

2⁸⁷²¹⁴³ is an apocalyptic number.

872143 is a deficient number, since it is larger than the sum of its proper divisors (1).

872143 is an equidigital number, since it uses as much as digits as its factorization.

872143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 25.

The square root of 872143 is about 933.8859673429. The cubic root of 872143 is about 95.5423457392.

The spelling of 872143 in words is "eight hundred seventy-two thousand, one hundred forty-three".