6143891 has 8 divisors (see below), whose sum is σ = 6778464. Its totient is φ = 5532480.

The previous prime is 6143861. The next prime is 6143927. The reversal of 6143891 is 1983416.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6143891 - 2⁶ = 6143827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6143861) 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, 5231 + ... + 6296.

It is an arithmetic number, because the mean of its divisors is an integer number (847308).

Almost surely, 2^6143891 is an apocalyptic number.

6143891 is a deficient number, since it is larger than the sum of its proper divisors (634573).

6143891 is a wasteful number, since it uses less digits than its factorization.

6143891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11581.

The product of its digits is 5184, while the sum is 32.

The square root of 6143891 is about 2478.6873542260. The cubic root of 6143891 is about 183.1531956958.

The spelling of 6143891 in words is "six million, one hundred forty-three thousand, eight hundred ninety-one".