2018682173 has 2 divisors, whose sum is σ = 2018682174. Its totient is φ = 2018682172.

The previous prime is 2018682161. The next prime is 2018682209. The reversal of 2018682173 is 3712868102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1988892409 + 29789764 = 44597^2 + 5458^2 .

It is a cyclic number.

It is not a de Polignac number, because 2018682173 - 2⁴ = 2018682157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2018682973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009341086 + 1009341087.

It is an arithmetic number, because the mean of its divisors is an integer number (1009341087).

Almost surely, 2^2018682173 is an apocalyptic number.

It is an amenable number.

2018682173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018682173 is an equidigital number, since it uses as much as digits as its factorization.

2018682173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 2018682173 is about 44929.7470836416. The cubic root of 2018682173 is about 1263.8319083360.

The spelling of 2018682173 in words is "two billion, eighteen million, six hundred eighty-two thousand, one hundred seventy-three".