1003168081 has 2 divisors, whose sum is σ = 1003168082. Its totient is φ = 1003168080.

The previous prime is 1003168063. The next prime is 1003168139. The reversal of 1003168081 is 1808613001.

It is a happy number.

1003168081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 694849600 + 308318481 = 26360^2 + 17559^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003168081 - 2¹⁵ = 1003135313 is a prime.

It is a super-2 number, since 2×1003168081² = 2012692397474445122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1003168021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501584040 + 501584041.

It is an arithmetic number, because the mean of its divisors is an integer number (501584041).

Almost surely, 2^1003168081 is an apocalyptic number.

It is an amenable number.

1003168081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003168081 is an equidigital number, since it uses as much as digits as its factorization.

1003168081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1003168081 is about 31672.8287495765. The cubic root of 1003168081 is about 1001.0549137656.

The spelling of 1003168081 in words is "one billion, three million, one hundred sixty-eight thousand, eighty-one".