6490135 has 4 divisors (see below), whose sum is σ = 7788168. Its totient is φ = 5192104.

The previous prime is 6490123. The next prime is 6490139. The reversal of 6490135 is 5310946.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6490135 - 2⁷ = 6490007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6490139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649009 + ... + 649018.

It is an arithmetic number, because the mean of its divisors is an integer number (1947042).

Almost surely, 2^6490135 is an apocalyptic number.

6490135 is a deficient number, since it is larger than the sum of its proper divisors (1298033).

6490135 is a wasteful number, since it uses less digits than its factorization.

6490135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298032.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 6490135 is about 2547.5743365013. The cubic root of 6490135 is about 186.5310966459.

The spelling of 6490135 in words is "six million, four hundred ninety thousand, one hundred thirty-five".