6634143 has 24 divisors (see below), whose sum is σ = 10378368. Its totient is φ = 4226904.

The previous prime is 6634109. The next prime is 6634151. The reversal of 6634143 is 3414366.

It is not a de Polignac number, because 6634143 - 2⁶ = 6634079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6634643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4996 + ... + 6182.

It is an arithmetic number, because the mean of its divisors is an integer number (432432).

Almost surely, 2^6634143 is an apocalyptic number.

6634143 is a deficient number, since it is larger than the sum of its proper divisors (3744225).

6634143 is a wasteful number, since it uses less digits than its factorization.

6634143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225 (or 1213 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 6634143 is about 2575.6830162114. The cubic root of 6634143 is about 187.9006472929.

The spelling of 6634143 in words is "six million, six hundred thirty-four thousand, one hundred forty-three".