5643045 has 24 divisors (see below), whose sum is σ = 9898200. Its totient is φ = 2973696.

The previous prime is 5643041. The next prime is 5643047. The reversal of 5643045 is 5403465.

5643045 = T₂₁₉ + T₂₂₀ + ... + T₃₅₃.

It can be written as a sum of positive squares in 4 ways, for example, as 181476 + 5461569 = 426^2 + 2337^2 .

It is not a de Polignac number, because 5643045 - 2² = 5643041 is a prime.

It is an Ulam number.

5643045 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643041) 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 23 ways as a sum of consecutive naturals, for example, 3301 + ... + 4709.

It is an arithmetic number, because the mean of its divisors is an integer number (412425).

Almost surely, 2^5643045 is an apocalyptic number.

It is an amenable number.

5643045 is a deficient number, since it is larger than the sum of its proper divisors (4255155).

5643045 is a wasteful number, since it uses less digits than its factorization.

5643045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509 (or 1506 counting only the distinct ones).

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

The square root of 5643045 is about 2375.5094190510. The cubic root of 5643045 is about 178.0346374541.

The spelling of 5643045 in words is "five million, six hundred forty-three thousand, forty-five".