3081825 has 18 divisors (see below), whose sum is σ = 5520294. Its totient is φ = 1643520.

The previous prime is 3081823. The next prime is 3081833. The reversal of 3081825 is 5281803.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 12321 + 3069504 = 111^2 + 1752^2 .

It is not a de Polignac number, because 3081825 - 2¹ = 3081823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3081823) 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, 6624 + ... + 7073.

It is an arithmetic number, because the mean of its divisors is an integer number (306683).

Almost surely, 2^3081825 is an apocalyptic number.

It is an amenable number.

3081825 is a deficient number, since it is larger than the sum of its proper divisors (2438469).

3081825 is a wasteful number, since it uses less digits than its factorization.

3081825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13713 (or 13705 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 3081825 is about 1755.5127456102. The cubic root of 3081825 is about 145.5244582825.

The spelling of 3081825 in words is "three million, eighty-one thousand, eight hundred twenty-five".