6871129 has 4 divisors (see below), whose sum is σ = 6883200. Its totient is φ = 6859060.

The previous prime is 6871127. The next prime is 6871133. The reversal of 6871129 is 9211786.

It is a happy number.

6871129 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9211786 = 2 ⋅4605893.

It is a cyclic number.

It is not a de Polignac number, because 6871129 - 2¹ = 6871127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6871094 and 6871103.

It is not an unprimeable number, because it can be changed into a prime (6871121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5137 + ... + 6334.

It is an arithmetic number, because the mean of its divisors is an integer number (1720800).

Almost surely, 2^6871129 is an apocalyptic number.

It is an amenable number.

6871129 is a deficient number, since it is larger than the sum of its proper divisors (12071).

6871129 is a wasteful number, since it uses less digits than its factorization.

6871129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12070.

The product of its digits is 6048, while the sum is 34.

The square root of 6871129 is about 2621.2838457519. The cubic root of 6871129 is about 190.1119285101. Note that the first 3 decimals are identical.

The spelling of 6871129 in words is "six million, eight hundred seventy-one thousand, one hundred twenty-nine".