5645173 has 4 divisors (see below), whose sum is σ = 5977260. Its totient is φ = 5313088.

The previous prime is 5645161. The next prime is 5645177. The reversal of 5645173 is 3715465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5116644 + 528529 = 2262^2 + 727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5645173 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166018 + ... + 166051.

It is an arithmetic number, because the mean of its divisors is an integer number (1494315).

Almost surely, 2^5645173 is an apocalyptic number.

It is an amenable number.

5645173 is a deficient number, since it is larger than the sum of its proper divisors (332087).

5645173 is a wasteful number, since it uses less digits than its factorization.

5645173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332086.

The product of its digits is 12600, while the sum is 31.

The square root of 5645173 is about 2375.9572807607. The cubic root of 5645173 is about 178.0570136769.

The spelling of 5645173 in words is "five million, six hundred forty-five thousand, one hundred seventy-three".