5605139 has 4 divisors (see below), whose sum is σ = 5654856. Its totient is φ = 5555424.

The previous prime is 5605111. The next prime is 5605147. The reversal of 5605139 is 9315065.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5605139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5605739) 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, 24689 + ... + 24914.

It is an arithmetic number, because the mean of its divisors is an integer number (1413714).

Almost surely, 2^5605139 is an apocalyptic number.

5605139 is a deficient number, since it is larger than the sum of its proper divisors (49717).

5605139 is a wasteful number, since it uses less digits than its factorization.

5605139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49716.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 5605139 is about 2367.5174761763. The cubic root of 5605139 is about 177.6351044391.

The spelling of 5605139 in words is "five million, six hundred five thousand, one hundred thirty-nine".