104641091 has 2 divisors, whose sum is σ = 104641092. Its totient is φ = 104641090.

The previous prime is 104641087. The next prime is 104641093. The reversal of 104641091 is 190146401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104641091 - 2² = 104641087 is a prime.

Together with 104641093, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104641091.

It is not a weakly prime, because it can be changed into another prime (104641093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52320545 + 52320546.

It is an arithmetic number, because the mean of its divisors is an integer number (52320546).

Almost surely, 2^104641091 is an apocalyptic number.

104641091 is a deficient number, since it is larger than the sum of its proper divisors (1).

104641091 is an equidigital number, since it uses as much as digits as its factorization.

104641091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 104641091 is about 10229.4228087415. The cubic root of 104641091 is about 471.2312533497.

Adding to 104641091 its reverse (190146401), we get a palindrome (294787492).

The spelling of 104641091 in words is "one hundred four million, six hundred forty-one thousand, ninety-one".