5139493 has 2 divisors, whose sum is σ = 5139494. Its totient is φ = 5139492.

The previous prime is 5139479. The next prime is 5139509. The reversal of 5139493 is 3949315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4153444 + 986049 = 2038^2 + 993^2 .

It is a cyclic number.

It is not a de Polignac number, because 5139493 - 2⁵ = 5139461 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5139413) by changing a digit.

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 as a sum of consecutive naturals, namely, 2569746 + 2569747.

It is an arithmetic number, because the mean of its divisors is an integer number (2569747).

Almost surely, 2^5139493 is an apocalyptic number.

It is an amenable number.

5139493 is a deficient number, since it is larger than the sum of its proper divisors (1).

5139493 is an equidigital number, since it uses as much as digits as its factorization.

5139493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 34.

The square root of 5139493 is about 2267.0449929368. The cubic root of 5139493 is about 172.5732294279.

The spelling of 5139493 in words is "five million, one hundred thirty-nine thousand, four hundred ninety-three".