3123625 has 8 divisors (see below), whose sum is σ = 3898440. Its totient is φ = 2498800.

The previous prime is 3123623. The next prime is 3123629. The reversal of 3123625 is 5263213.

It can be written as a sum of positive squares in 4 ways, for example, as 68121 + 3055504 = 261^2 + 1748^2 .

It is not a de Polignac number, because 3123625 - 2¹ = 3123623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3123596 and 3123605.

It is not an unprimeable number, because it can be changed into a prime (3123623) 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 7 ways as a sum of consecutive naturals, for example, 12370 + ... + 12619.

It is an arithmetic number, because the mean of its divisors is an integer number (487305).

Almost surely, 2^3123625 is an apocalyptic number.

It is an amenable number.

3123625 is a deficient number, since it is larger than the sum of its proper divisors (774815).

3123625 is an equidigital number, since it uses as much as digits as its factorization.

3123625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25004 (or 24994 counting only the distinct ones).

The product of its digits is 1080, while the sum is 22.

The square root of 3123625 is about 1767.3780014473. The cubic root of 3123625 is about 146.1794409682.

Adding to 3123625 its reverse (5263213), we get a palindrome (8386838).

The spelling of 3123625 in words is "three million, one hundred twenty-three thousand, six hundred twenty-five".