2645173 has 4 divisors (see below), whose sum is σ = 2648448. Its totient is φ = 2641900.

The previous prime is 2645171. The next prime is 2645189. The reversal of 2645173 is 3715462.

2645173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3715462 = 2 ⋅1857731.

It is a cyclic number.

It is not a de Polignac number, because 2645173 - 2¹ = 2645171 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 (2645171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540 + ... + 2362.

It is an arithmetic number, because the mean of its divisors is an integer number (662112).

2^2645173 is an apocalyptic number.

It is an amenable number.

2645173 is a deficient number, since it is larger than the sum of its proper divisors (3275).

2645173 is a wasteful number, since it uses less digits than its factorization.

2645173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3274.

The product of its digits is 5040, while the sum is 28.

The square root of 2645173 is about 1626.3987825869. The cubic root of 2645173 is about 138.2986774688.

The spelling of 2645173 in words is "two million, six hundred forty-five thousand, one hundred seventy-three".