1000118173 has 2 divisors, whose sum is σ = 1000118174. Its totient is φ = 1000118172.

The previous prime is 1000118153. The next prime is 1000118201. The reversal of 1000118173 is 3718110001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 997170084 + 2948089 = 31578^2 + 1717^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000118173 - 2¹⁷ = 999987101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000118113) 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, 500059086 + 500059087.

It is an arithmetic number, because the mean of its divisors is an integer number (500059087).

Almost surely, 2^1000118173 is an apocalyptic number.

It is an amenable number.

1000118173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000118173 is an equidigital number, since it uses as much as digits as its factorization.

1000118173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 22.

The square root of 1000118173 is about 31624.6450256758. The cubic root of 1000118173 is about 1000.0393894485.

Adding to 1000118173 its reverse (3718110001), we get a palindrome (4718228174).

The spelling of 1000118173 in words is "one billion, one hundred eighteen thousand, one hundred seventy-three".