20198183 has 2 divisors, whose sum is σ = 20198184. Its totient is φ = 20198182.

The previous prime is 20198147. The next prime is 20198201. The reversal of 20198183 is 38189102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20198183 - 2¹⁰ = 20197159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20194183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10099091 + 10099092.

It is an arithmetic number, because the mean of its divisors is an integer number (10099092).

Almost surely, 2^20198183 is an apocalyptic number.

20198183 is a deficient number, since it is larger than the sum of its proper divisors (1).

20198183 is an equidigital number, since it uses as much as digits as its factorization.

20198183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 20198183 is about 4494.2388677061. The cubic root of 20198183 is about 272.3354020991.

The spelling of 20198183 in words is "twenty million, one hundred ninety-eight thousand, one hundred eighty-three".