6455143 has 4 divisors (see below), whose sum is σ = 6462040. Its totient is φ = 6448248.

The previous prime is 6455129. The next prime is 6455153. The reversal of 6455143 is 3415546.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6455143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6455153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773 + ... + 4006.

It is an arithmetic number, because the mean of its divisors is an integer number (1615510).

Almost surely, 2^6455143 is an apocalyptic number.

6455143 is a deficient number, since it is larger than the sum of its proper divisors (6897).

6455143 is a wasteful number, since it uses less digits than its factorization.

6455143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6896.

The product of its digits is 7200, while the sum is 28.

The square root of 6455143 is about 2540.6973452184. The cubic root of 6455143 is about 186.1952607029.

The spelling of 6455143 in words is "six million, four hundred fifty-five thousand, one hundred forty-three".