3105625 has 10 divisors (see below), whose sum is σ = 3881570. Its totient is φ = 2484000.

The previous prime is 3105593. The next prime is 3105629. The reversal of 3105625 is 5265013.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 1710864 + 1394761 = 1308^2 + 1181^2 .

It is not a de Polignac number, because 3105625 - 2⁵ = 3105593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3105596 and 3105605.

It is not an unprimeable number, because it can be changed into a prime (3105629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1860 + ... + 3109.

It is an arithmetic number, because the mean of its divisors is an integer number (388157).

Almost surely, 2^3105625 is an apocalyptic number.

It is an amenable number.

3105625 is a deficient number, since it is larger than the sum of its proper divisors (775945).

3105625 is an frugal number, since it uses more digits than its factorization.

3105625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989 (or 4974 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 3105625 is about 1762.2783548577. The cubic root of 3105625 is about 145.8981118110.

The spelling of 3105625 in words is "three million, one hundred five thousand, six hundred twenty-five".