1008109 has 4 divisors (see below), whose sum is σ = 1010880. Its totient is φ = 1005340.

The previous prime is 1008101. The next prime is 1008131. The reversal of 1008109 is 9018001.

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: 9018001 = 23 ⋅392087.

It is a cyclic number.

It is not a de Polignac number, because 1008109 - 2³ = 1008101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1008101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739 + ... + 1600.

It is an arithmetic number, because the mean of its divisors is an integer number (252720).

2^1008109 is an apocalyptic number.

It is an amenable number.

1008109 is a deficient number, since it is larger than the sum of its proper divisors (2771).

1008109 is an equidigital number, since it uses as much as digits as its factorization.

1008109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1008109 is about 1004.0463136728. The cubic root of 1008109 is about 100.2695726529.

The spelling of 1008109 in words is "one million, eight thousand, one hundred nine".