6540499 has 8 divisors (see below), whose sum is σ = 7507808. Its totient is φ = 5581440.

The previous prime is 6540493. The next prime is 6540511. The reversal of 6540499 is 9940456.

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 6540499 - 2⁵ = 6540467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6540493) 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, 252 + ... + 3625.

It is an arithmetic number, because the mean of its divisors is an integer number (938476).

Almost surely, 2^6540499 is an apocalyptic number.

6540499 is a deficient number, since it is larger than the sum of its proper divisors (967309).

6540499 is a wasteful number, since it uses less digits than its factorization.

6540499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4125.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 6540499 is about 2557.4399308684. The cubic root of 6540499 is about 187.0123529830.

The spelling of 6540499 in words is "six million, five hundred forty thousand, four hundred ninety-nine".