6542043 has 4 divisors (see below), whose sum is σ = 8722728. Its totient is φ = 4361360.

The previous prime is 6542021. The next prime is 6542077. The reversal of 6542043 is 3402456.

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

It is a cyclic number.

It is not a de Polignac number, because 6542043 - 2¹³ = 6533851 is a prime.

It is a super-2 number, since 2×6542043² = 85596653227698, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (6542243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1090338 + ... + 1090343.

It is an arithmetic number, because the mean of its divisors is an integer number (2180682).

Almost surely, 2^6542043 is an apocalyptic number.

6542043 is a deficient number, since it is larger than the sum of its proper divisors (2180685).

6542043 is a wasteful number, since it uses less digits than its factorization.

6542043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180684.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 6542043 is about 2557.7417774279. The cubic root of 6542043 is about 187.0270676786.

Adding to 6542043 its reverse (3402456), we get a palindrome (9944499).

The spelling of 6542043 in words is "six million, five hundred forty-two thousand, forty-three".