100408559 has 4 divisors (see below), whose sum is σ = 105693240. Its totient is φ = 95123880.

The previous prime is 100408543. The next prime is 100408571. The reversal of 100408559 is 955804001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 100408559 - 2⁴ = 100408543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100408589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2642312 + ... + 2642349.

It is an arithmetic number, because the mean of its divisors is an integer number (26423310).

Almost surely, 2^100408559 is an apocalyptic number.

100408559 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

100408559 is a deficient number, since it is larger than the sum of its proper divisors (5284681).

100408559 is an equidigital number, since it uses as much as digits as its factorization.

100408559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5284680.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 100408559 is about 10020.4071274574. The cubic root of 100408559 is about 464.7901454117.

The spelling of 100408559 in words is "one hundred million, four hundred eight thousand, five hundred fifty-nine".