2153243 has 2 divisors, whose sum is σ = 2153244. Its totient is φ = 2153242.

The previous prime is 2153227. The next prime is 2153267. The reversal of 2153243 is 3423512.

It is a happy number.

2153243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2153243 - 2⁴ = 2153227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2153273) 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 as a sum of consecutive naturals, namely, 1076621 + 1076622.

It is an arithmetic number, because the mean of its divisors is an integer number (1076622).

2^2153243 is an apocalyptic number.

2153243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2153243 is an equidigital number, since it uses as much as digits as its factorization.

2153243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 20.

The square root of 2153243 is about 1467.3932669874. The cubic root of 2153243 is about 129.1311487960.

Adding to 2153243 its reverse (3423512), we get a palindrome (5576755).

The spelling of 2153243 in words is "two million, one hundred fifty-three thousand, two hundred forty-three".