1000548161 has 2 divisors, whose sum is σ = 1000548162. Its totient is φ = 1000548160.

The previous prime is 1000548121. The next prime is 1000548163. The reversal of 1000548161 is 1618450001.

1000548161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 548730625 + 451817536 = 23425^2 + 21256^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000548161 - 2¹⁰ = 1000547137 is a prime.

It is a super-3 number, since 3×1000548161³ (a number of 28 digits) contains 333 as substring.

Together with 1000548163, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000548161.

It is not a weakly prime, because it can be changed into another prime (1000548163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500274080 + 500274081.

It is an arithmetic number, because the mean of its divisors is an integer number (500274081).

Almost surely, 2^1000548161 is an apocalyptic number.

It is an amenable number.

1000548161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000548161 is an equidigital number, since it uses as much as digits as its factorization.

1000548161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 1000548161 is about 31631.4426006782. The cubic root of 1000548161 is about 1000.1826869568.

Adding to 1000548161 its reverse (1618450001), we get a palindrome (2618998162).

The spelling of 1000548161 in words is "one billion, five hundred forty-eight thousand, one hundred sixty-one".