500122109 has 2 divisors, whose sum is σ = 500122110. Its totient is φ = 500122108.

The previous prime is 500122093. The next prime is 500122157. The reversal of 500122109 is 901221005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319622884 + 180499225 = 17878^2 + 13435^2 .

It is a cyclic number.

It is not a de Polignac number, because 500122109 - 2⁴ = 500122093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500122169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250061054 + 250061055.

It is an arithmetic number, because the mean of its divisors is an integer number (250061055).

Almost surely, 2^500122109 is an apocalyptic number.

It is an amenable number.

500122109 is a deficient number, since it is larger than the sum of its proper divisors (1).

500122109 is an equidigital number, since it uses as much as digits as its factorization.

500122109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 500122109 is about 22363.4100485592. The cubic root of 500122109 is about 793.7651327100.

The spelling of 500122109 in words is "five hundred million, one hundred twenty-two thousand, one hundred nine".