1000010091 has 8 divisors (see below), whose sum is σ = 1411779024. Its totient is φ = 627457280.

The previous prime is 1000010069. The next prime is 1000010101. The reversal of 1000010091 is 1900100001.

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 1000010091 - 2⁹ = 1000009579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000010051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9803970 + ... + 9804071.

It is an arithmetic number, because the mean of its divisors is an integer number (176472378).

Almost surely, 2^1000010091 is an apocalyptic number.

1000010091 is a deficient number, since it is larger than the sum of its proper divisors (411768933).

1000010091 is a wasteful number, since it uses less digits than its factorization.

1000010091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19608061.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 1000010091 is about 31622.9361540006. The cubic root of 1000010091 is about 1000.0033636554.

Adding to 1000010091 its reverse (1900100001), we get a palindrome (2900110092).

The spelling of 1000010091 in words is "one billion, ten thousand, ninety-one".