6403143 has 12 divisors (see below), whose sum is σ = 8825784. Its totient is φ = 4129200.

The previous prime is 6403141. The next prime is 6403151. The reversal of 6403143 is 3413046.

It is not a de Polignac number, because 6403143 - 2¹ = 6403141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6403141) 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 11 ways as a sum of consecutive naturals, for example, 1773 + ... + 3993.

It is an arithmetic number, because the mean of its divisors is an integer number (735482).

Almost surely, 2^6403143 is an apocalyptic number.

6403143 is a deficient number, since it is larger than the sum of its proper divisors (2422641).

6403143 is a wasteful number, since it uses less digits than its factorization.

6403143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286 (or 2255 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 6403143 is about 2530.4432418057. The cubic root of 6403143 is about 185.6939411075.

Adding to 6403143 its reverse (3413046), we get a palindrome (9816189).

The spelling of 6403143 in words is "six million, four hundred three thousand, one hundred forty-three".