1806008173 has 2 divisors, whose sum is σ = 1806008174. Its totient is φ = 1806008172.

The previous prime is 1806008143. The next prime is 1806008179. The reversal of 1806008173 is 3718006081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1760809444 + 45198729 = 41962^2 + 6723^2 .

It is an emirp because it is prime and its reverse (3718006081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1806008173 - 2⁹ = 1806007661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1806008179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903004086 + 903004087.

It is an arithmetic number, because the mean of its divisors is an integer number (903004087).

Almost surely, 2^1806008173 is an apocalyptic number.

It is an amenable number.

1806008173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1806008173 is an equidigital number, since it uses as much as digits as its factorization.

1806008173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 1806008173 is about 42497.1548812388. The cubic root of 1806008173 is about 1217.7923375771.

The spelling of 1806008173 in words is "one billion, eight hundred six million, eight thousand, one hundred seventy-three".