5139917 has 2 divisors, whose sum is σ = 5139918. Its totient is φ = 5139916.

The previous prime is 5139913. The next prime is 5139923. The reversal of 5139917 is 7199315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4748041 + 391876 = 2179^2 + 626^2 .

It is a cyclic number.

It is not a de Polignac number, because 5139917 - 2² = 5139913 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5139913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2569958 + 2569959.

It is an arithmetic number, because the mean of its divisors is an integer number (2569959).

Almost surely, 2^5139917 is an apocalyptic number.

It is an amenable number.

5139917 is a deficient number, since it is larger than the sum of its proper divisors (1).

5139917 is an equidigital number, since it uses as much as digits as its factorization.

5139917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8505, while the sum is 35.

The square root of 5139917 is about 2267.1385048117. The cubic root of 5139917 is about 172.5779749697.

The spelling of 5139917 in words is "five million, one hundred thirty-nine thousand, nine hundred seventeen".