1009110091 has 8 divisors (see below), whose sum is σ = 1101077568. Its totient is φ = 917181000.

The previous prime is 1009110043. The next prime is 1009110127. The reversal of 1009110091 is 1900119001.

1009110091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1009110091 - 2¹⁹ = 1008585803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1009110041) 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, 94956 + ... + 105046.

It is an arithmetic number, because the mean of its divisors is an integer number (137634696).

Almost surely, 2^1009110091 is an apocalyptic number.

1009110091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1009110091 is a deficient number, since it is larger than the sum of its proper divisors (91967477).

1009110091 is a wasteful number, since it uses less digits than its factorization.

1009110091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19193.

The product of its (nonzero) digits is 81, while the sum is 22.

The square root of 1009110091 is about 31766.4932121882. The cubic root of 1009110091 is about 1003.0275218614.

Adding to 1009110091 its reverse (1900119001), we get a palindrome (2909229092).

The spelling of 1009110091 in words is "one billion, nine million, one hundred ten thousand, ninety-one".