3123225 has 48 divisors (see below), whose sum is σ = 6567040. Its totient is φ = 1425600.

The previous prime is 3123221. The next prime is 3123227. The reversal of 3123225 is 5223213.

3123225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3123225 - 2² = 3123221 is a prime.

3123225 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3123198 and 3123207.

It is not an unprimeable number, because it can be changed into a prime (3123221) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 4395 + ... + 5055.

Almost surely, 2^3123225 is an apocalyptic number.

3123225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3123225 is the 945-th nonagonal number.

It is an amenable number.

3123225 is an abundant number, since it is smaller than the sum of its proper divisors (3443815).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3123225 is a wasteful number, since it uses less digits than its factorization.

3123225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 676 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 3123225 is about 1767.2648358410. The cubic root of 3123225 is about 146.1732009669.

Adding to 3123225 its reverse (5223213), we get a palindrome (8346438).

The spelling of 3123225 in words is "three million, one hundred twenty-three thousand, two hundred twenty-five".