6540995 has 8 divisors (see below), whose sum is σ = 7997616. Its totient is φ = 5133856.

The previous prime is 6540983. The next prime is 6541021. The reversal of 6540995 is 5990456.

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 6540995 - 2⁸ = 6540739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 12077 + ... + 12606.

It is an arithmetic number, because the mean of its divisors is an integer number (999702).

Almost surely, 2^6540995 is an apocalyptic number.

6540995 is a deficient number, since it is larger than the sum of its proper divisors (1456621).

6540995 is a wasteful number, since it uses less digits than its factorization.

6540995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24741.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 6540995 is about 2557.5369010046. The cubic root of 6540995 is about 187.0170802361.

The spelling of 6540995 in words is "six million, five hundred forty thousand, nine hundred ninety-five".