6655143 has 16 divisors (see below), whose sum is σ = 10250496. Its totient is φ = 3795840.

The previous prime is 6655133. The next prime is 6655169. The reversal of 6655143 is 3415566.

It is not a de Polignac number, because 6655143 - 2⁸ = 6654887 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6655143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6655133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5371 + ... + 6492.

It is an arithmetic number, because the mean of its divisors is an integer number (640656).

Almost surely, 2^6655143 is an apocalyptic number.

6655143 is a deficient number, since it is larger than the sum of its proper divisors (3595353).

6655143 is a wasteful number, since it uses less digits than its factorization.

6655143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11894.

The product of its digits is 10800, while the sum is 30.

The square root of 6655143 is about 2579.7563838471. The cubic root of 6655143 is about 188.0987013786.

The spelling of 6655143 in words is "six million, six hundred fifty-five thousand, one hundred forty-three".