5138743 has 4 divisors (see below), whose sum is σ = 5441040. Its totient is φ = 4836448.

The previous prime is 5138719. The next prime is 5138747. The reversal of 5138743 is 3478315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3478315 = 5 ⋅695663.

It is a cyclic number.

It is not a de Polignac number, because 5138743 - 2¹⁷ = 5007671 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5138747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151123 + ... + 151156.

It is an arithmetic number, because the mean of its divisors is an integer number (1360260).

Almost surely, 2^5138743 is an apocalyptic number.

5138743 is a deficient number, since it is larger than the sum of its proper divisors (302297).

5138743 is a wasteful number, since it uses less digits than its factorization.

5138743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302296.

The product of its digits is 10080, while the sum is 31.

The square root of 5138743 is about 2266.8795733342. The cubic root of 5138743 is about 172.5648345519.

The spelling of 5138743 in words is "five million, one hundred thirty-eight thousand, seven hundred forty-three".