100091109 has 8 divisors (see below), whose sum is σ = 133840800. Its totient is φ = 66534416.

The previous prime is 100091077. The next prime is 100091119. The reversal of 100091109 is 901190001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100091109 - 2⁵ = 100091077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100091119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47034 + ... + 49115.

It is an arithmetic number, because the mean of its divisors is an integer number (16730100).

Almost surely, 2^100091109 is an apocalyptic number.

It is an amenable number.

100091109 is a deficient number, since it is larger than the sum of its proper divisors (33749691).

100091109 is an equidigital number, since it uses as much as digits as its factorization.

100091109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96499.

The product of its (nonzero) digits is 81, while the sum is 21.

The square root of 100091109 is about 10004.5544128662. The cubic root of 100091109 is about 464.2998040785.

The spelling of 100091109 in words is "one hundred million, ninety-one thousand, one hundred nine".