104821559 has 2 divisors, whose sum is σ = 104821560. Its totient is φ = 104821558.

The previous prime is 104821531. The next prime is 104821597. The reversal of 104821559 is 955128401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104821559 - 2²⁰ = 103772983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104821529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52410779 + 52410780.

It is an arithmetic number, because the mean of its divisors is an integer number (52410780).

Almost surely, 2^104821559 is an apocalyptic number.

104821559 is a deficient number, since it is larger than the sum of its proper divisors (1).

104821559 is an equidigital number, since it uses as much as digits as its factorization.

104821559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 104821559 is about 10238.2400343028. The cubic root of 104821559 is about 471.5019988692.

The spelling of 104821559 in words is "one hundred four million, eight hundred twenty-one thousand, five hundred fifty-nine".