8129143 has 18 divisors (see below), whose sum is σ = 9414272. Its totient is φ = 7013160.

The previous prime is 8129141. The next prime is 8129153. The reversal of 8129143 is 3419218.

It is a happy number.

It is not a de Polignac number, because 8129143 - 2¹ = 8129141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8129141) 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 17 ways as a sum of consecutive naturals, for example, 63946 + ... + 64072.

Almost surely, 2^8129143 is an apocalyptic number.

8129143 is a deficient number, since it is larger than the sum of its proper divisors (1285129).

8129143 is a wasteful number, since it uses less digits than its factorization.

8129143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 161 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 8129143 is about 2851.1652004049. The cubic root of 8129143 is about 201.0704521065.

The spelling of 8129143 in words is "eight million, one hundred twenty-nine thousand, one hundred forty-three".