2173005 has 24 divisors (see below), whose sum is σ = 3857568. Its totient is φ = 1130976.

The previous prime is 2173001. The next prime is 2173009. The reversal of 2173005 is 5003712.

It is an interprime number because it is at equal distance from previous prime (2173001) and next prime (2173009).

It is not a de Polignac number, because 2173005 - 2² = 2173001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1374 + ... + 2496.

It is an arithmetic number, because the mean of its divisors is an integer number (160732).

2^2173005 is an apocalyptic number.

It is an amenable number.

2173005 is a deficient number, since it is larger than the sum of its proper divisors (1684563).

2173005 is a wasteful number, since it uses less digits than its factorization.

2173005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 2173005 is about 1474.1115968610. Note that the first 3 decimals coincide. The cubic root of 2173005 is about 129.5249923192.

Adding to 2173005 its reverse (5003712), we get a palindrome (7176717).

The spelling of 2173005 in words is "two million, one hundred seventy-three thousand, five".