3081125 has 12 divisors (see below), whose sum is σ = 3869892. Its totient is φ = 2449200.

The previous prime is 3081119. The next prime is 3081137. The reversal of 3081125 is 5211803.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

3081125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1643524 + 1437601 = 1282^2 + 1199^2 .

It is not a de Polignac number, because 3081125 - 2⁶ = 3081061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3081097 and 3081106.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 19547 + ... + 19703.

It is an arithmetic number, because the mean of its divisors is an integer number (322491).

Almost surely, 2^3081125 is an apocalyptic number.

It is an amenable number.

3081125 is a deficient number, since it is larger than the sum of its proper divisors (788767).

3081125 is an frugal number, since it uses more digits than its factorization.

3081125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 3081125 is about 1755.3133623373. The cubic root of 3081125 is about 145.5134393966.

Multiplying 3081125 by its sum of digits (20), we get a square (61622500 = 7850²).

Adding to 3081125 its reverse (5211803), we get a palindrome (8292928).

The spelling of 3081125 in words is "three million, eighty-one thousand, one hundred twenty-five".