2123144 has 16 divisors (see below), whose sum is σ = 4078620. Its totient is φ = 1035520.

The previous prime is 2123141. The next prime is 2123161. The reversal of 2123144 is 4413212.

It can be written as a sum of positive squares in 2 ways, for example, as 1716100 + 407044 = 1310^2 + 638^2 .

It is not an unprimeable number, because it can be changed into a prime (2123141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2909 + ... + 3564.

2^2123144 is an apocalyptic number.

It is an amenable number.

2123144 is a deficient number, since it is larger than the sum of its proper divisors (1955476).

2123144 is a wasteful number, since it uses less digits than its factorization.

2123144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6520 (or 6516 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 2123144 is about 1457.1012318985. The cubic root of 2123144 is about 128.5266388372.

Adding to 2123144 its reverse (4413212), we get a palindrome (6536356).

The spelling of 2123144 in words is "two million, one hundred twenty-three thousand, one hundred forty-four".