2144142 has 144 divisors (see below), whose sum is σ = 6722352. Its totient is φ = 483840.

The previous prime is 2144137. The next prime is 2144143. The reversal of 2144142 is 2414412.

2144142 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 (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144143) 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 71 ways as a sum of consecutive naturals, for example, 126118 + ... + 126134.

It is an arithmetic number, because the mean of its divisors is an integer number (46683).

2^2144142 is an apocalyptic number.

2144142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2144142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3361176).

2144142 is an abundant number, since it is smaller than the sum of its proper divisors (4578210).

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

2144142 is a wasteful number, since it uses less digits than its factorization.

2144142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63 (or 53 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 2144142 is about 1464.2889059199. The cubic root of 2144142 is about 128.9489612406.

Adding to 2144142 its reverse (2414412), we get a palindrome (4558554).

It can be divided in two parts, 214 and 4142, that added together give a square (4356 = 66²).

The spelling of 2144142 in words is "two million, one hundred forty-four thousand, one hundred forty-two".