3218125 has 20 divisors (see below), whose sum is σ = 4248640. Its totient is φ = 2430000.

The previous prime is 3218123. The next prime is 3218143. The reversal of 3218125 is 5218123.

3218125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3218125 - 2¹ = 3218123 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3218096 and 3218105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3218123) 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 19 ways as a sum of consecutive naturals, for example, 11740 + ... + 12010.

It is an arithmetic number, because the mean of its divisors is an integer number (212432).

Almost surely, 2^3218125 is an apocalyptic number.

It is an amenable number.

3218125 is a deficient number, since it is larger than the sum of its proper divisors (1030515).

3218125 is an equidigital number, since it uses as much as digits as its factorization.

3218125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 295 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 3218125 is about 1793.9133200910. The cubic root of 3218125 is about 147.6389574338.

The spelling of 3218125 in words is "three million, two hundred eighteen thousand, one hundred twenty-five".