500043139 has 2 divisors, whose sum is σ = 500043140. Its totient is φ = 500043138.

The previous prime is 500043109. The next prime is 500043149. The reversal of 500043139 is 931340005.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 500043139 - 2⁵ = 500043107 is a prime.

It is not a weakly prime, because it can be changed into another prime (500043109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250021569 + 250021570.

It is an arithmetic number, because the mean of its divisors is an integer number (250021570).

Almost surely, 2^500043139 is an apocalyptic number.

500043139 is a deficient number, since it is larger than the sum of its proper divisors (1).

500043139 is an equidigital number, since it uses as much as digits as its factorization.

500043139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 500043139 is about 22361.6443715573. The cubic root of 500043139 is about 793.7233516257.

The spelling of 500043139 in words is "five hundred million, forty-three thousand, one hundred thirty-nine".