2812138 has 8 divisors (see below), whose sum is σ = 4820832. Its totient is φ = 1205196.

The previous prime is 2812129. The next prime is 2812153. The reversal of 2812138 is 8312182.

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

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100420 + ... + 100447.

It is an arithmetic number, because the mean of its divisors is an integer number (602604).

2^2812138 is an apocalyptic number.

2812138 is a deficient number, since it is larger than the sum of its proper divisors (2008694).

2812138 is a wasteful number, since it uses less digits than its factorization.

2812138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200876.

The product of its digits is 768, while the sum is 25.

The square root of 2812138 is about 1676.9430521040. The cubic root of 2812138 is about 141.1493479827.

The spelling of 2812138 in words is "two million, eight hundred twelve thousand, one hundred thirty-eight".