6143439 has 4 divisors (see below), whose sum is σ = 8191256. Its totient is φ = 4095624.

The previous prime is 6143437. The next prime is 6143483. The reversal of 6143439 is 9343416.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6143439 - 2¹ = 6143437 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6143437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023904 + ... + 1023909.

It is an arithmetic number, because the mean of its divisors is an integer number (2047814).

Almost surely, 2^6143439 is an apocalyptic number.

6143439 is a deficient number, since it is larger than the sum of its proper divisors (2047817).

6143439 is a wasteful number, since it uses less digits than its factorization.

6143439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047816.

The product of its digits is 7776, while the sum is 30.

The square root of 6143439 is about 2478.5961752573. The cubic root of 6143439 is about 183.1487041190.

The spelling of 6143439 in words is "six million, one hundred forty-three thousand, four hundred thirty-nine".