6818125 has 10 divisors (see below), whose sum is σ = 8520710. Its totient is φ = 5454000.

The previous prime is 6818117. The next prime is 6818137. The reversal of 6818125 is 5218186.

It can be written as a sum of positive squares in 5 ways, for example, as 3617604 + 3200521 = 1902^2 + 1789^2 .

It is not a de Polignac number, because 6818125 - 2³ = 6818117 is a prime.

6818125 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4830 + ... + 6079.

It is an arithmetic number, because the mean of its divisors is an integer number (852071).

Almost surely, 2^6818125 is an apocalyptic number.

It is an amenable number.

6818125 is a deficient number, since it is larger than the sum of its proper divisors (1702585).

6818125 is an equidigital number, since it uses as much as digits as its factorization.

6818125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10929 (or 10914 counting only the distinct ones).

The product of its digits is 3840, while the sum is 31.

The square root of 6818125 is about 2611.1539594593. The cubic root of 6818125 is about 189.6218239550.

The spelling of 6818125 in words is "six million, eight hundred eighteen thousand, one hundred twenty-five".