20080195 has 4 divisors (see below), whose sum is σ = 24096240. Its totient is φ = 16064152.

The previous prime is 20080187. The next prime is 20080199. The reversal of 20080195 is 59108002.

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 20080195 - 2³ = 20080187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20080199) 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, 2008015 + ... + 2008024.

It is an arithmetic number, because the mean of its divisors is an integer number (6024060).

Almost surely, 2^20080195 is an apocalyptic number.

20080195 is a deficient number, since it is larger than the sum of its proper divisors (4016045).

20080195 is an equidigital number, since it uses as much as digits as its factorization.

20080195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4016044.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 20080195 is about 4481.0930586186. The cubic root of 20080195 is about 271.8040823529.

Adding to 20080195 its reverse (59108002), we get a palindrome (79188197).

The spelling of 20080195 in words is "twenty million, eighty thousand, one hundred ninety-five".