5645139 has 16 divisors (see below), whose sum is σ = 8087040. Its totient is φ = 3489920.

The previous prime is 5645137. The next prime is 5645161. The reversal of 5645139 is 9315465.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5645139 - 2¹ = 5645137 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5645137) 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 15 ways as a sum of consecutive naturals, for example, 2842 + ... + 4400.

It is an arithmetic number, because the mean of its divisors is an integer number (505440).

Almost surely, 2^5645139 is an apocalyptic number.

5645139 is a deficient number, since it is larger than the sum of its proper divisors (2441901).

5645139 is a wasteful number, since it uses less digits than its factorization.

5645139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650.

The product of its digits is 16200, while the sum is 33.

The square root of 5645139 is about 2375.9501257392. The cubic root of 5645139 is about 178.0566562063.

The spelling of 5645139 in words is "five million, six hundred forty-five thousand, one hundred thirty-nine".