100488009 has 4 divisors (see below), whose sum is σ = 133984016. Its totient is φ = 66992004.

The previous prime is 100487999. The next prime is 100488013. The reversal of 100488009 is 900884001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 900884001 = 3 ⋅300294667.

It is not a de Polignac number, because 100488009 - 2⁸ = 100487753 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100488029) 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, 16747999 + ... + 16748004.

It is an arithmetic number, because the mean of its divisors is an integer number (33496004).

Almost surely, 2^100488009 is an apocalyptic number.

It is an amenable number.

100488009 is a deficient number, since it is larger than the sum of its proper divisors (33496007).

100488009 is an equidigital number, since it uses as much as digits as its factorization.

100488009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33496006.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 100488009 is about 10024.3707533191. The cubic root of 100488009 is about 464.9127041584.

The spelling of 100488009 in words is "one hundred million, four hundred eighty-eight thousand, nine".