20164205 has 8 divisors (see below), whose sum is σ = 24760032. Its totient is φ = 15756048.

The previous prime is 20164163. The next prime is 20164219. The reversal of 20164205 is 50246102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20164205 - 2¹⁴ = 20147821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46679 + ... + 47108.

It is an arithmetic number, because the mean of its divisors is an integer number (3095004).

Almost surely, 2^20164205 is an apocalyptic number.

It is an amenable number.

20164205 is a deficient number, since it is larger than the sum of its proper divisors (4595827).

20164205 is an equidigital number, since it uses as much as digits as its factorization.

20164205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93835.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20164205 is about 4490.4571036811. The cubic root of 20164205 is about 272.1826060788.

The spelling of 20164205 in words is "twenty million, one hundred sixty-four thousand, two hundred five".