6534140 has 12 divisors (see below), whose sum is σ = 13721736. Its totient is φ = 2613648.

The previous prime is 6534133. The next prime is 6534173. The reversal of 6534140 is 414356.

Added to its reverse (414356) it gives a square (6948496 = 2636²).

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163334 + ... + 163373.

It is an arithmetic number, because the mean of its divisors is an integer number (1143478).

Almost surely, 2^6534140 is an apocalyptic number.

It is an amenable number.

6534140 is an abundant number, since it is smaller than the sum of its proper divisors (7187596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6534140 is a wasteful number, since it uses less digits than its factorization.

6534140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326716 (or 326714 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 6534140 is about 2556.1963930809. The cubic root of 6534140 is about 186.9517257452.

Adding to 6534140 its reverse (414356), we get a palindrome (6948496).

The spelling of 6534140 in words is "six million, five hundred thirty-four thousand, one hundred forty".