500604161 has 2 divisors, whose sum is σ = 500604162. Its totient is φ = 500604160.

The previous prime is 500604149. The next prime is 500604163. The reversal of 500604161 is 161406005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 358875136 + 141729025 = 18944^2 + 11905^2 .

It is a cyclic number.

It is not a de Polignac number, because 500604161 - 2²² = 496409857 is a prime.

It is a Sophie Germain prime.

Together with 500604163, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (500604163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250302080 + 250302081.

It is an arithmetic number, because the mean of its divisors is an integer number (250302081).

Almost surely, 2^500604161 is an apocalyptic number.

It is an amenable number.

500604161 is a deficient number, since it is larger than the sum of its proper divisors (1).

500604161 is an equidigital number, since it uses as much as digits as its factorization.

500604161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 500604161 is about 22374.1851471735. The cubic root of 500604161 is about 794.0200792465.

The spelling of 500604161 in words is "five hundred million, six hundred four thousand, one hundred sixty-one".