2871155 has 12 divisors (see below), whose sum is σ = 4008240. Its totient is φ = 1968624.

The previous prime is 2871139. The next prime is 2871173. The reversal of 2871155 is 5511782.

It is not a de Polignac number, because 2871155 - 2⁴ = 2871139 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5615 + ... + 6104.

It is an arithmetic number, because the mean of its divisors is an integer number (334020).

2^2871155 is an apocalyptic number.

2871155 is a deficient number, since it is larger than the sum of its proper divisors (1137085).

2871155 is a wasteful number, since it uses less digits than its factorization.

2871155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11738 (or 11731 counting only the distinct ones).

The product of its digits is 2800, while the sum is 29.

The square root of 2871155 is about 1694.4482877916. The cubic root of 2871155 is about 142.1299313299.

The spelling of 2871155 in words is "two million, eight hundred seventy-one thousand, one hundred fifty-five".