6143809 has 8 divisors (see below), whose sum is σ = 7193088. Its totient is φ = 5137440.

The previous prime is 6143807. The next prime is 6143827. The reversal of 6143809 is 9083416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6143809 - 2¹ = 6143807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6143803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10417 + ... + 10990.

It is an arithmetic number, because the mean of its divisors is an integer number (899136).

Almost surely, 2^6143809 is an apocalyptic number.

It is an amenable number.

6143809 is a deficient number, since it is larger than the sum of its proper divisors (1049279).

6143809 is a wasteful number, since it uses less digits than its factorization.

6143809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21455.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 6143809 is about 2478.6708131577. The cubic root of 6143809 is about 183.1523808686.

The spelling of 6143809 in words is "six million, one hundred forty-three thousand, eight hundred nine".