2871138 has 8 divisors (see below), whose sum is σ = 5742288. Its totient is φ = 957044.

The previous prime is 2871137. The next prime is 2871139. The reversal of 2871138 is 8311782.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2871137) and next prime (2871139).

It is a sphenic number, since it is the product of 3 distinct primes.

2871138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2871133) 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 3 ways as a sum of consecutive naturals, for example, 239256 + ... + 239267.

It is an arithmetic number, because the mean of its divisors is an integer number (717786).

2^2871138 is an apocalyptic number.

2871138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2871138 is a wasteful number, since it uses less digits than its factorization.

2871138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478528.

The product of its digits is 2688, while the sum is 30.

The square root of 2871138 is about 1694.4432714021. The cubic root of 2871138 is about 142.1296508141.

The spelling of 2871138 in words is "two million, eight hundred seventy-one thousand, one hundred thirty-eight".