2866155 has 16 divisors (see below), whose sum is σ = 4630560. Its totient is φ = 1513728.

The previous prime is 2866151. The next prime is 2866159. The reversal of 2866155 is 5516682.

It is an interprime number because it is at equal distance from previous prime (2866151) and next prime (2866159).

It is not a de Polignac number, because 2866155 - 2² = 2866151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2866151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759 + ... + 2511.

It is an arithmetic number, because the mean of its divisors is an integer number (289410).

2^2866155 is an apocalyptic number.

2866155 is a deficient number, since it is larger than the sum of its proper divisors (1764405).

2866155 is a wasteful number, since it uses less digits than its factorization.

2866155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870.

The product of its digits is 14400, while the sum is 33.

The square root of 2866155 is about 1692.9722384020. The cubic root of 2866155 is about 142.0473788869.

It can be divided in two parts, 286 and 6155, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 2866155 in words is "two million, eight hundred sixty-six thousand, one hundred fifty-five".