2123544 has 32 divisors (see below), whose sum is σ = 5541120. Its totient is φ = 676896.

The previous prime is 2123491. The next prime is 2123557. The reversal of 2123544 is 4453212.

2123544 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2123544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1372 + ... + 2475.

It is an arithmetic number, because the mean of its divisors is an integer number (173160).

2^2123544 is an apocalyptic number.

2123544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2123544 is an abundant number, since it is smaller than the sum of its proper divisors (3417576).

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

2123544 is a wasteful number, since it uses less digits than its factorization.

2123544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879 (or 3875 counting only the distinct ones).

The product of its digits is 960, while the sum is 21.

The square root of 2123544 is about 1457.2384842571. The cubic root of 2123544 is about 128.5347097967.

Adding to 2123544 its reverse (4453212), we get a palindrome (6576756).

The spelling of 2123544 in words is "two million, one hundred twenty-three thousand, five hundred forty-four".