6545609 has 8 divisors (see below), whose sum is σ = 7663488. Its totient is φ = 5473440.

The previous prime is 6545603. The next prime is 6545621. The reversal of 6545609 is 9065456.

It is a happy number.

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

It is not a de Polignac number, because 6545609 - 2⁸ = 6545353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6545603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11117 + ... + 11690.

It is an arithmetic number, because the mean of its divisors is an integer number (957936).

Almost surely, 2^6545609 is an apocalyptic number.

It is an amenable number.

6545609 is a deficient number, since it is larger than the sum of its proper divisors (1117879).

6545609 is a wasteful number, since it uses less digits than its factorization.

6545609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22855.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 6545609 is about 2558.4387817573. The cubic root of 6545609 is about 187.0610436796.

The spelling of 6545609 in words is "six million, five hundred forty-five thousand, six hundred nine".