5238139 has 2 divisors, whose sum is σ = 5238140. Its totient is φ = 5238138.

The previous prime is 5238137. The next prime is 5238143. The reversal of 5238139 is 9318325.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5238139 - 2¹ = 5238137 is a prime.

Together with 5238137, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 5238139.

It is not a weakly prime, because it can be changed into another prime (5238137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2619069 + 2619070.

It is an arithmetic number, because the mean of its divisors is an integer number (2619070).

Almost surely, 2^5238139 is an apocalyptic number.

5238139 is a deficient number, since it is larger than the sum of its proper divisors (1).

5238139 is an equidigital number, since it uses as much as digits as its factorization.

5238139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 5238139 is about 2288.6981015416. The cubic root of 5238139 is about 173.6703473558.

It can be divided in two parts, 5 and 238139, that added together give a square (238144 = 488²).

The spelling of 5238139 in words is "five million, two hundred thirty-eight thousand, one hundred thirty-nine".