2123454 has 16 divisors (see below), whose sum is σ = 4261248. Its totient is φ = 705432.

The previous prime is 2123423. The next prime is 2123461. The reversal of 2123454 is 4543212.

2123454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2123454 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2123454.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2959 + ... + 3605.

It is an arithmetic number, because the mean of its divisors is an integer number (266328).

2^2123454 is an apocalyptic number.

2123454 is an abundant number, since it is smaller than the sum of its proper divisors (2137794).

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

2123454 is a wasteful number, since it uses less digits than its factorization.

2123454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199.

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

The square root of 2123454 is about 1457.2076036035. The cubic root of 2123454 is about 128.5328939192.

Adding to 2123454 its reverse (4543212), we get a palindrome (6666666).

The spelling of 2123454 in words is "two million, one hundred twenty-three thousand, four hundred fifty-four".