100909099 has 2 divisors, whose sum is σ = 100909100. Its totient is φ = 100909098.

The previous prime is 100909097. The next prime is 100909103. The reversal of 100909099 is 990909001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100909099 - 2¹ = 100909097 is a prime.

Together with 100909097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (100909091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50454549 + 50454550.

It is an arithmetic number, because the mean of its divisors is an integer number (50454550).

Almost surely, 2^100909099 is an apocalyptic number.

100909099 is a deficient number, since it is larger than the sum of its proper divisors (1).

100909099 is an equidigital number, since it uses as much as digits as its factorization.

100909099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6561, while the sum is 37.

The square root of 100909099 is about 10045.3521093091. The cubic root of 100909099 is about 465.5611970232.

The spelling of 100909099 in words is "one hundred million, nine hundred nine thousand, ninety-nine".