6825138 has 16 divisors (see below), whose sum is σ = 13714176. Its totient is φ = 2264400.

The previous prime is 6825127. The next prime is 6825151. The reversal of 6825138 is 8315286.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6825099 and 6825108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213 + ... + 3888.

It is an arithmetic number, because the mean of its divisors is an integer number (857136).

Almost surely, 2^6825138 is an apocalyptic number.

6825138 is an abundant number, since it is smaller than the sum of its proper divisors (6889038).

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

6825138 is a wasteful number, since it uses less digits than its factorization.

6825138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5329.

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

The square root of 6825138 is about 2612.4965071747. The cubic root of 6825138 is about 189.6868155360.

The spelling of 6825138 in words is "six million, eight hundred twenty-five thousand, one hundred thirty-eight".