6543542 has 8 divisors (see below), whose sum is σ = 10132032. Its totient is φ = 3166200.

The previous prime is 6543541. The next prime is 6543577. The reversal of 6543542 is 2453456.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6543541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52709 + ... + 52832.

It is an arithmetic number, because the mean of its divisors is an integer number (1266504).

Almost surely, 2^6543542 is an apocalyptic number.

6543542 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

6543542 is a deficient number, since it is larger than the sum of its proper divisors (3588490).

6543542 is a wasteful number, since it uses less digits than its factorization.

6543542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105574.

The product of its digits is 14400, while the sum is 29.

The square root of 6543542 is about 2558.0347925703. The cubic root of 6543542 is about 187.0413512984.

Adding to 6543542 its reverse (2453456), we get a palindrome (8996998).

The spelling of 6543542 in words is "six million, five hundred forty-three thousand, five hundred forty-two".