5139791 has 2 divisors, whose sum is σ = 5139792. Its totient is φ = 5139790.

The previous prime is 5139767. The next prime is 5139793. The reversal of 5139791 is 1979315.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5139791 is a prime.

It is a Sophie Germain prime.

Together with 5139793, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5139793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2569895 + 2569896.

It is an arithmetic number, because the mean of its divisors is an integer number (2569896).

Almost surely, 2^5139791 is an apocalyptic number.

5139791 is a deficient number, since it is larger than the sum of its proper divisors (1).

5139791 is an equidigital number, since it uses as much as digits as its factorization.

5139791 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 5139791 is about 2267.1107163083. The cubic root of 5139791 is about 172.5765647652.

The spelling of 5139791 in words is "five million, one hundred thirty-nine thousand, seven hundred ninety-one".