2104200491 has 2 divisors, whose sum is σ = 2104200492. Its totient is φ = 2104200490.

The previous prime is 2104200457. The next prime is 2104200509. The reversal of 2104200491 is 1940024012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2104200491 - 2²⁶ = 2037091627 is a prime.

It is not a weakly prime, because it can be changed into another prime (2104200451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052100245 + 1052100246.

It is an arithmetic number, because the mean of its divisors is an integer number (1052100246).

Almost surely, 2^2104200491 is an apocalyptic number.

2104200491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104200491 is an equidigital number, since it uses as much as digits as its factorization.

2104200491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2104200491 is about 45871.5651684134. The cubic root of 2104200491 is about 1281.4324155871.

The spelling of 2104200491 in words is "two billion, one hundred four million, two hundred thousand, four hundred ninety-one".