500128039 has 2 divisors, whose sum is σ = 500128040. Its totient is φ = 500128038.

The previous prime is 500128033. The next prime is 500128067. The reversal of 500128039 is 930821005.

It is an a-pointer prime, because the next prime (500128067) can be obtained adding 500128039 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 500128039 - 2¹³ = 500119847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 500127998 and 500128016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500128033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250064019 + 250064020.

It is an arithmetic number, because the mean of its divisors is an integer number (250064020).

Almost surely, 2^500128039 is an apocalyptic number.

500128039 is a deficient number, since it is larger than the sum of its proper divisors (1).

500128039 is an equidigital number, since it uses as much as digits as its factorization.

500128039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 500128039 is about 22363.5426308087. The cubic root of 500128039 is about 793.7682699496.

The spelling of 500128039 in words is "five hundred million, one hundred twenty-eight thousand, thirty-nine".