5139109 has 2 divisors, whose sum is σ = 5139110. Its totient is φ = 5139108.

The previous prime is 5139089. The next prime is 5139131. The reversal of 5139109 is 9019315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4088484 + 1050625 = 2022^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 5139109 - 2¹⁹ = 4614821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5139179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2569554 + 2569555.

It is an arithmetic number, because the mean of its divisors is an integer number (2569555).

Almost surely, 2^5139109 is an apocalyptic number.

It is an amenable number.

5139109 is a deficient number, since it is larger than the sum of its proper divisors (1).

5139109 is an equidigital number, since it uses as much as digits as its factorization.

5139109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 5139109 is about 2266.9602996083. The cubic root of 5139109 is about 172.5689313534.

The spelling of 5139109 in words is "five million, one hundred thirty-nine thousand, one hundred nine".