23164205 has 4 divisors (see below), whose sum is σ = 27797052. Its totient is φ = 18531360.

The previous prime is 23164189. The next prime is 23164231. The reversal of 23164205 is 50246132.

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 4380649 + 18783556 = 2093^2 + 4334^2 .

It is not a de Polignac number, because 23164205 - 2⁴ = 23164189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2316416 + ... + 2316425.

It is an arithmetic number, because the mean of its divisors is an integer number (6949263).

Almost surely, 2^23164205 is an apocalyptic number.

It is an amenable number.

23164205 is a deficient number, since it is larger than the sum of its proper divisors (4632847).

23164205 is an equidigital number, since it uses as much as digits as its factorization.

23164205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4632846.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 23164205 is about 4812.9206309683. The cubic root of 23164205 is about 285.0618722752.

The spelling of 23164205 in words is "twenty-three million, one hundred sixty-four thousand, two hundred five".