2855142 has 32 divisors (see below), whose sum is σ = 6520800. Its totient is φ = 925344.

The previous prime is 2855141. The next prime is 2855159. The reversal of 2855142 is 2415582.

It is a happy number.

2855142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855141) 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 15 ways as a sum of consecutive naturals, for example, 1284 + ... + 2712.

It is an arithmetic number, because the mean of its divisors is an integer number (203775).

2^2855142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2855142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3260400).

2855142 is an abundant number, since it is smaller than the sum of its proper divisors (3665658).

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

2855142 is a wasteful number, since it uses less digits than its factorization.

2855142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477 (or 1471 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 2855142 is about 1689.7165442760. The cubic root of 2855142 is about 141.8652096590.

The spelling of 2855142 in words is "two million, eight hundred fifty-five thousand, one hundred forty-two".