20064185 has 4 divisors (see below), whose sum is σ = 24077028. Its totient is φ = 16051344.

The previous prime is 20064179. The next prime is 20064203. The reversal of 20064185 is 58146002.

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 15272464 + 4791721 = 3908^2 + 2189^2 .

It is a cyclic number.

It is not a de Polignac number, because 20064185 - 2⁴ = 20064169 is a prime.

It is a Duffinian number.

It is a Curzon 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, 2006414 + ... + 2006423.

It is an arithmetic number, because the mean of its divisors is an integer number (6019257).

Almost surely, 2^20064185 is an apocalyptic number.

It is an amenable number.

20064185 is a deficient number, since it is larger than the sum of its proper divisors (4012843).

20064185 is an equidigital number, since it uses as much as digits as its factorization.

20064185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012842.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 20064185 is about 4479.3063079008. The cubic root of 20064185 is about 271.7318264082.

The spelling of 20064185 in words is "twenty million, sixty-four thousand, one hundred eighty-five".