5139540 has 72 divisors (see below), whose sum is σ = 17821440. Its totient is φ = 1174464.

The previous prime is 5139539. The next prime is 5139551. The reversal of 5139540 is 459315.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 780 + ... + 3299.

It is an arithmetic number, because the mean of its divisors is an integer number (247520).

Almost surely, 2^5139540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5139540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8910720).

5139540 is an abundant number, since it is smaller than the sum of its proper divisors (12681900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5139540 is a wasteful number, since it uses less digits than its factorization.

5139540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4101 (or 4096 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 5139540 is about 2267.0553588300. The cubic root of 5139540 is about 172.5737554796.

The spelling of 5139540 in words is "five million, one hundred thirty-nine thousand, five hundred forty".