108999801 has 12 divisors (see below), whose sum is σ = 166705812. Its totient is φ = 68391936.

The previous prime is 108999791. The next prime is 108999811.

108999801 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (108999791) and next prime (108999811).

It can be written as a sum of positive squares in 2 ways, for example, as 102030201 + 6969600 = 10101^2 + 2640^2 .

It is not a de Polignac number, because 108999801 - 2¹⁰ = 108998777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108999811) 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 11 ways as a sum of consecutive naturals, for example, 356056 + ... + 356361.

It is an arithmetic number, because the mean of its divisors is an integer number (13892151).

Almost surely, 2^108999801 is an apocalyptic number.

It is an amenable number.

108999801 is a deficient number, since it is larger than the sum of its proper divisors (57706011).

108999801 is a wasteful number, since it uses less digits than its factorization.

108999801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712440 (or 712437 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 45.

The square root of 108999801 is about 10440.2969785347. The cubic root of 108999801 is about 477.6853274017.

The spelling of 108999801 in words is "one hundred eight million, nine hundred ninety-nine thousand, eight hundred one".