3045645 has 24 divisors (see below), whose sum is σ = 5382936. Its totient is φ = 1592448.

The previous prime is 3045631. The next prime is 3045661. The reversal of 3045645 is 5465403.

It can be written as a sum of positive squares in 4 ways, for example, as 741321 + 2304324 = 861^2 + 1518^2 .

It is not a de Polignac number, because 3045645 - 2⁵ = 3045613 is a prime.

It is a super-3 number, since 3×3045645³ = 84753783882095133375, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1747 + ... + 3023.

It is an arithmetic number, because the mean of its divisors is an integer number (224289).

Almost surely, 2^3045645 is an apocalyptic number.

It is an amenable number.

3045645 is a deficient number, since it is larger than the sum of its proper divisors (2337291).

3045645 is a wasteful number, since it uses less digits than its factorization.

3045645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1338 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 3045645 is about 1745.1776413878. The cubic root of 3045645 is about 144.9527392548.

The spelling of 3045645 in words is "three million, forty-five thousand, six hundred forty-five".