20800183 has 2 divisors, whose sum is σ = 20800184. Its totient is φ = 20800182.

The previous prime is 20800181. The next prime is 20800201. The reversal of 20800183 is 38100802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20800183 - 2¹ = 20800181 is a prime.

It is a super-2 number, since 2×20800183² = 865295225666978, which contains 22 as substring.

Together with 20800181, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20800181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10400091 + 10400092.

It is an arithmetic number, because the mean of its divisors is an integer number (10400092).

Almost surely, 2^20800183 is an apocalyptic number.

20800183 is a deficient number, since it is larger than the sum of its proper divisors (1).

20800183 is an equidigital number, since it uses as much as digits as its factorization.

20800183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 20800183 is about 4560.7217630546. The cubic root of 20800183 is about 275.0145799432.

Adding to 20800183 its reverse (38100802), we get a palindrome (58900985).

The spelling of 20800183 in words is "twenty million, eight hundred thousand, one hundred eighty-three".