6539043 has 16 divisors (see below), whose sum is σ = 10066176. Its totient is φ = 3698400.

The previous prime is 6539041. The next prime is 6539051. The reversal of 6539043 is 3409356.

It is a happy number.

It is not a de Polignac number, because 6539043 - 2¹ = 6539041 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6539043.

It is not an unprimeable number, because it can be changed into a prime (6539041) 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, 580 + ... + 3662.

It is an arithmetic number, because the mean of its divisors is an integer number (629136).

Almost surely, 2^6539043 is an apocalyptic number.

6539043 is a deficient number, since it is larger than the sum of its proper divisors (3527133).

6539043 is a wasteful number, since it uses less digits than its factorization.

6539043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 6539043 is about 2557.1552553570. The cubic root of 6539043 is about 186.9984748272.

The spelling of 6539043 in words is "six million, five hundred thirty-nine thousand, forty-three".