2005037173 has 4 divisors (see below), whose sum is σ = 2006033260. Its totient is φ = 2004041088.

The previous prime is 2005037159. The next prime is 2005037191. The reversal of 2005037173 is 3717305002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1149006609 + 856030564 = 33897^2 + 29258^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005037173 - 2²⁹ = 1468166261 is a prime.

It is a super-2 number, since 2×2005037173² = 8040348130223663858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005037113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495018 + ... + 499051.

It is an arithmetic number, because the mean of its divisors is an integer number (501508315).

Almost surely, 2^2005037173 is an apocalyptic number.

It is an amenable number.

2005037173 is a deficient number, since it is larger than the sum of its proper divisors (996087).

2005037173 is an equidigital number, since it uses as much as digits as its factorization.

2005037173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996086.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 2005037173 is about 44777.6414407905. The cubic root of 2005037173 is about 1260.9779031811.

The spelling of 2005037173 in words is "two billion, five million, thirty-seven thousand, one hundred seventy-three".