6543126 has 16 divisors (see below), whose sum is σ = 14540400. Its totient is φ = 2181024.

The previous prime is 6543101. The next prime is 6543127. The reversal of 6543126 is 6213456.

6543126 is a `hidden beast` number, since 654 + 3 + 1 + 2 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 6543126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6543127) 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 7 ways as a sum of consecutive naturals, for example, 60531 + ... + 60638.

It is an arithmetic number, because the mean of its divisors is an integer number (908775).

Almost surely, 2^6543126 is an apocalyptic number.

6543126 is an abundant number, since it is smaller than the sum of its proper divisors (7997274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6543126 is a wasteful number, since it uses less digits than its factorization.

6543126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121180 (or 121174 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 6543126 is about 2557.9534788577. The cubic root of 6543126 is about 187.0373875506.

Adding to 6543126 its sum of digits (27), we get a triangular number (6543153 = T₃₆₁₇).

The spelling of 6543126 in words is "six million, five hundred forty-three thousand, one hundred twenty-six".