20854195 has 4 divisors (see below), whose sum is σ = 25025040. Its totient is φ = 16683352.

The previous prime is 20854159. The next prime is 20854201. The reversal of 20854195 is 59145802.

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 20854195 - 2¹¹ = 20852147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20854195.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2085415 + ... + 2085424.

It is an arithmetic number, because the mean of its divisors is an integer number (6256260).

Almost surely, 2^20854195 is an apocalyptic number.

20854195 is a deficient number, since it is larger than the sum of its proper divisors (4170845).

20854195 is an equidigital number, since it uses as much as digits as its factorization.

20854195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170844.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 20854195 is about 4566.6393551495. The cubic root of 20854195 is about 275.2524183758.

Adding to 20854195 its reverse (59145802), we get a palindrome (79999997).

The spelling of 20854195 in words is "twenty million, eight hundred fifty-four thousand, one hundred ninety-five".