5409139 has 4 divisors (see below), whose sum is σ = 5414256. Its totient is φ = 5404024.

The previous prime is 5409137. The next prime is 5409149. The reversal of 5409139 is 9319045.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5409139 - 2¹ = 5409137 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 self number, because there is not a number n which added to its sum of digits gives 5409139.

It is not an unprimeable number, because it can be changed into a prime (5409133) 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 3 ways as a sum of consecutive naturals, for example, 319 + ... + 3304.

It is an arithmetic number, because the mean of its divisors is an integer number (1353564).

Almost surely, 2^5409139 is an apocalyptic number.

5409139 is a deficient number, since it is larger than the sum of its proper divisors (5117).

5409139 is a wasteful number, since it uses less digits than its factorization.

5409139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5116.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 5409139 is about 2325.7555761515. The cubic root of 5409139 is about 175.5399810968.

The spelling of 5409139 in words is "five million, four hundred nine thousand, one hundred thirty-nine".