6540307 has 8 divisors (see below), whose sum is σ = 6676992. Its totient is φ = 6405000.

The previous prime is 6540301. The next prime is 6540311. The reversal of 6540307 is 7030456.

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

It is a cyclic number.

It is not a de Polignac number, because 6540307 - 2³ = 6540299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6540301) 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, 17638 + ... + 18004.

It is an arithmetic number, because the mean of its divisors is an integer number (834624).

Almost surely, 2^6540307 is an apocalyptic number.

6540307 is a deficient number, since it is larger than the sum of its proper divisors (136685).

6540307 is a wasteful number, since it uses less digits than its factorization.

6540307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 6540307 is about 2557.4023930543. The cubic root of 6540307 is about 187.0105230145.

The spelling of 6540307 in words is "six million, five hundred forty thousand, three hundred seven".