3120345 has 12 divisors (see below), whose sum is σ = 5408676. Its totient is φ = 1664160.

The previous prime is 3120331. The next prime is 3120373. The reversal of 3120345 is 5430213.

It can be written as a sum of positive squares in 2 ways, for example, as 968256 + 2152089 = 984^2 + 1467^2 .

It is not a de Polignac number, because 3120345 - 2⁶ = 3120281 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34626 + ... + 34715.

It is an arithmetic number, because the mean of its divisors is an integer number (450723).

Almost surely, 2^3120345 is an apocalyptic number.

It is an amenable number.

3120345 is a deficient number, since it is larger than the sum of its proper divisors (2288331).

3120345 is a wasteful number, since it uses less digits than its factorization.

3120345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69352 (or 69349 counting only the distinct ones).

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

The square root of 3120345 is about 1766.4498294602. The cubic root of 3120345 is about 146.1282572219.

Adding to 3120345 its reverse (5430213), we get a palindrome (8550558).

The spelling of 3120345 in words is "three million, one hundred twenty thousand, three hundred forty-five".