28105183 has 2 divisors, whose sum is σ = 28105184. Its totient is φ = 28105182.

The previous prime is 28105157. The next prime is 28105229. The reversal of 28105183 is 38150182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28105183 - 2⁵ = 28105151 is a prime.

It is a super-2 number, since 2×28105183² = 1579802622926978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28105283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14052591 + 14052592.

It is an arithmetic number, because the mean of its divisors is an integer number (14052592).

Almost surely, 2^28105183 is an apocalyptic number.

28105183 is a deficient number, since it is larger than the sum of its proper divisors (1).

28105183 is an equidigital number, since it uses as much as digits as its factorization.

28105183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 28105183 is about 5301.4321649909. The cubic root of 28105183 is about 304.0386572205.

The spelling of 28105183 in words is "twenty-eight million, one hundred five thousand, one hundred eighty-three".