6653143 has 16 divisors (see below), whose sum is σ = 7879680. Its totient is φ = 5499936.

The previous prime is 6653123. The next prime is 6653159. The reversal of 6653143 is 3413566.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6653143 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 (6653123) 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, 29196 + ... + 29422.

It is an arithmetic number, because the mean of its divisors is an integer number (492480).

Almost surely, 2^6653143 is an apocalyptic number.

6653143 is a deficient number, since it is larger than the sum of its proper divisors (1226537).

6653143 is a wasteful number, since it uses less digits than its factorization.

6653143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366.

The product of its digits is 6480, while the sum is 28.

The square root of 6653143 is about 2579.3687212184. The cubic root of 6653143 is about 188.0798570505.

The spelling of 6653143 in words is "six million, six hundred fifty-three thousand, one hundred forty-three".