500305139 has 2 divisors, whose sum is σ = 500305140. Its totient is φ = 500305138.

The previous prime is 500305123. The next prime is 500305171. The reversal of 500305139 is 931503005.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 500305139 - 2⁴ = 500305123 is a prime.

It is not a weakly prime, because it can be changed into another prime (500305639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250152569 + 250152570.

It is an arithmetic number, because the mean of its divisors is an integer number (250152570).

Almost surely, 2^500305139 is an apocalyptic number.

500305139 is a deficient number, since it is larger than the sum of its proper divisors (1).

500305139 is an equidigital number, since it uses as much as digits as its factorization.

500305139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2025, while the sum is 26.

The square root of 500305139 is about 22367.5018497820. The cubic root of 500305139 is about 793.8619524734.

The spelling of 500305139 in words is "five hundred million, three hundred five thousand, one hundred thirty-nine".