108821559 has 16 divisors (see below), whose sum is σ = 180898560. Its totient is φ = 56530560.

The previous prime is 108821527. The next prime is 108821597. The reversal of 108821559 is 955128801.

It is not a de Polignac number, because 108821559 - 2⁵ = 108821527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108821509) 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 in 15 ways as a sum of consecutive naturals, for example, 235314 + ... + 235775.

It is an arithmetic number, because the mean of its divisors is an integer number (11306160).

Almost surely, 2^108821559 is an apocalyptic number.

108821559 is a deficient number, since it is larger than the sum of its proper divisors (72077001).

108821559 is a wasteful number, since it uses less digits than its factorization.

108821559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471110.

The product of its (nonzero) digits is 28800, while the sum is 39.

The square root of 108821559 is about 10431.7572345219. The cubic root of 108821559 is about 477.4248069239.

The spelling of 108821559 in words is "one hundred eight million, eight hundred twenty-one thousand, five hundred fifty-nine".