5138539 has 16 divisors (see below), whose sum is σ = 6436800. Its totient is φ = 3999744.

The previous prime is 5138537. The next prime is 5138561. The reversal of 5138539 is 9358315.

It is not a de Polignac number, because 5138539 - 2¹ = 5138537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5138533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2707 + ... + 4195.

It is an arithmetic number, because the mean of its divisors is an integer number (402300).

Almost surely, 2^5138539 is an apocalyptic number.

5138539 is a deficient number, since it is larger than the sum of its proper divisors (1298261).

5138539 is a wasteful number, since it uses less digits than its factorization.

5138539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542.

The product of its digits is 16200, while the sum is 34.

The square root of 5138539 is about 2266.8345771141. The cubic root of 5138539 is about 172.5625510044.

The spelling of 5138539 in words is "five million, one hundred thirty-eight thousand, five hundred thirty-nine".