23173171 has 4 divisors (see below), whose sum is σ = 26483632. Its totient is φ = 19862712.

The previous prime is 23173153. The next prime is 23173181. The reversal of 23173171 is 17137132.

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

It is a cyclic number.

It is not a de Polignac number, because 23173171 - 2⁹ = 23172659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23173181) 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, 1655220 + ... + 1655233.

It is an arithmetic number, because the mean of its divisors is an integer number (6620908).

Almost surely, 2^23173171 is an apocalyptic number.

23173171 is a deficient number, since it is larger than the sum of its proper divisors (3310461).

23173171 is an equidigital number, since it uses as much as digits as its factorization.

23173171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310460.

The product of its digits is 882, while the sum is 25.

The square root of 23173171 is about 4813.8519919084. The cubic root of 23173171 is about 285.0986464714.

The spelling of 23173171 in words is "twenty-three million, one hundred seventy-three thousand, one hundred seventy-one".