2143923 has 8 divisors (see below), whose sum is σ = 2865408. Its totient is φ = 1425864.

The previous prime is 2143909. The next prime is 2143943. The reversal of 2143923 is 3293412.

2143923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2143923 - 2⁶ = 2143859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2143893 and 2143902.

It is not an unprimeable number, because it can be changed into a prime (2143943) 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 7 ways as a sum of consecutive naturals, for example, 1690 + ... + 2672.

It is an arithmetic number, because the mean of its divisors is an integer number (358176).

2^2143923 is an apocalyptic number.

2143923 is a deficient number, since it is larger than the sum of its proper divisors (721485).

2143923 is an equidigital number, since it uses as much as digits as its factorization.

2143923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713.

The product of its digits is 1296, while the sum is 24.

The square root of 2143923 is about 1464.2141236855. The cubic root of 2143923 is about 128.9445708622.

The spelling of 2143923 in words is "two million, one hundred forty-three thousand, nine hundred twenty-three".