5140639 has 6 divisors (see below), whose sum is σ = 5979984. Its totient is φ = 4406220.

The previous prime is 5140633. The next prime is 5140643. The reversal of 5140639 is 9360415.

It is a de Polignac number, because none of the positive numbers 2^k-5140639 is a prime.

It is an Ulam 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 (5140633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52407 + ... + 52504.

It is an arithmetic number, because the mean of its divisors is an integer number (996664).

Almost surely, 2^5140639 is an apocalyptic number.

5140639 is a deficient number, since it is larger than the sum of its proper divisors (839345).

5140639 is a wasteful number, since it uses less digits than its factorization.

5140639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104925 (or 104918 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 5140639 is about 2267.2977307800. The cubic root of 5140639 is about 172.5860552211.

The spelling of 5140639 in words is "five million, one hundred forty thousand, six hundred thirty-nine".