3185825 has 18 divisors (see below), whose sum is σ = 4181094. Its totient is φ = 2407680.

The previous prime is 3185821. The next prime is 3185837. The reversal of 3185825 is 5285813.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 130321 + 3055504 = 361^2 + 1748^2 .

It is not a de Polignac number, because 3185825 - 2² = 3185821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3185791 and 3185800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3185821) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8849 + ... + 9201.

It is an arithmetic number, because the mean of its divisors is an integer number (232283).

Almost surely, 2^3185825 is an apocalyptic number.

It is an amenable number.

3185825 is a deficient number, since it is larger than the sum of its proper divisors (995269).

3185825 is a wasteful number, since it uses less digits than its factorization.

3185825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 377 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 3185825 is about 1784.8879516653. The cubic root of 3185825 is about 147.1433497598.

The spelling of 3185825 in words is "three million, one hundred eighty-five thousand, eight hundred twenty-five".