6543203 has 2 divisors, whose sum is σ = 6543204. Its totient is φ = 6543202.

The previous prime is 6543193. The next prime is 6543223. The reversal of 6543203 is 3023456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6543203 - 2¹⁸ = 6281059 is a prime.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (6543223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271601 + 3271602.

It is an arithmetic number, because the mean of its divisors is an integer number (3271602).

Almost surely, 2^6543203 is an apocalyptic number.

6543203 is a deficient number, since it is larger than the sum of its proper divisors (1).

6543203 is an equidigital number, since it uses as much as digits as its factorization.

6543203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 6543203 is about 2557.9685299081. The cubic root of 6543203 is about 187.0381212377.

Adding to 6543203 its reverse (3023456), we get a palindrome (9566659).

The spelling of 6543203 in words is "six million, five hundred forty-three thousand, two hundred three".