6528138 has 8 divisors (see below), whose sum is σ = 13056288. Its totient is φ = 2176044.

The previous prime is 6528133. The next prime is 6528139. The reversal of 6528138 is 8318256.

It is a happy number.

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

6528138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 6528099 and 6528108.

It is not an unprimeable number, because it can be changed into a prime (6528133) 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 3 ways as a sum of consecutive naturals, for example, 544006 + ... + 544017.

It is an arithmetic number, because the mean of its divisors is an integer number (1632036).

Almost surely, 2^6528138 is an apocalyptic number.

6528138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6528138 is a wasteful number, since it uses less digits than its factorization.

6528138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088028.

The product of its digits is 11520, while the sum is 33.

The square root of 6528138 is about 2555.0221134072. The cubic root of 6528138 is about 186.8944660803.

It can be divided in two parts, 6528 and 138, that added together give a palindrome (6666).

The spelling of 6528138 in words is "six million, five hundred twenty-eight thousand, one hundred thirty-eight".