2745173 has 4 divisors (see below), whose sum is σ = 2752620. Its totient is φ = 2737728.

The previous prime is 2745161. The next prime is 2745179. The reversal of 2745173 is 3715472.

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 2010724 + 734449 = 1418^2 + 857^2 .

It is a cyclic number.

It is not a de Polignac number, because 2745173 - 2⁴ = 2745157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745179) 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, 3140 + ... + 3917.

It is an arithmetic number, because the mean of its divisors is an integer number (688155).

2^2745173 is an apocalyptic number.

It is an amenable number.

2745173 is a deficient number, since it is larger than the sum of its proper divisors (7447).

2745173 is an equidigital number, since it uses as much as digits as its factorization.

2745173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7446.

The product of its digits is 5880, while the sum is 29.

The square root of 2745173 is about 1656.8563607024. The cubic root of 2745173 is about 140.0199461377.

Subtracting 2745173 from its reverse (3715472), we obtain a cube (970299 = 99³).

The spelling of 2745173 in words is "two million, seven hundred forty-five thousand, one hundred seventy-three".