2057173 has 4 divisors (see below), whose sum is σ = 2128140. Its totient is φ = 1986208.

The previous prime is 2057147. The next prime is 2057177. The reversal of 2057173 is 3717502.

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 762129 + 1295044 = 873^2 + 1138^2 .

It is a cyclic number.

It is not a de Polignac number, because 2057173 - 2⁵ = 2057141 is a prime.

It is a Duffinian number.

2057173 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057177) 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, 35440 + ... + 35497.

It is an arithmetic number, because the mean of its divisors is an integer number (532035).

2^2057173 is an apocalyptic number.

It is an amenable number.

2057173 is a deficient number, since it is larger than the sum of its proper divisors (70967).

2057173 is an equidigital number, since it uses as much as digits as its factorization.

2057173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70966.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 2057173 is about 1434.2848392143. The cubic root of 2057173 is about 127.1814011347.

The spelling of 2057173 in words is "two million, fifty-seven thousand, one hundred seventy-three".