499026161 has 2 divisors, whose sum is σ = 499026162. Its totient is φ = 499026160.

The previous prime is 499026149. The next prime is 499026163. The reversal of 499026161 is 161620994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 418816225 + 80209936 = 20465^2 + 8956^2 .

It is a cyclic number.

It is not a de Polignac number, because 499026161 - 2⁶ = 499026097 is a prime.

It is a Sophie Germain prime.

Together with 499026163, 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 (499026163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249513080 + 249513081.

It is an arithmetic number, because the mean of its divisors is an integer number (249513081).

Almost surely, 2^499026161 is an apocalyptic number.

It is an amenable number.

499026161 is a deficient number, since it is larger than the sum of its proper divisors (1).

499026161 is an equidigital number, since it uses as much as digits as its factorization.

499026161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 499026161 is about 22338.8934596143. The cubic root of 499026161 is about 793.1849000636.

The spelling of 499026161 in words is "four hundred ninety-nine million, twenty-six thousand, one hundred sixty-one".