1009105 has 4 divisors (see below), whose sum is σ = 1210932. Its totient is φ = 807280.

The previous prime is 1009097. The next prime is 1009121. The reversal of 1009105 is 5019001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 331776 + 677329 = 576^2 + 823^2 .

It is not a de Polignac number, because 1009105 - 2³ = 1009097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100906 + ... + 100915.

It is an arithmetic number, because the mean of its divisors is an integer number (302733).

2^1009105 is an apocalyptic number.

It is an amenable number.

1009105 is a deficient number, since it is larger than the sum of its proper divisors (201827).

1009105 is an equidigital number, since it uses as much as digits as its factorization.

1009105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201826.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 1009105 is about 1004.5421842810. The cubic root of 1009105 is about 100.3025835087.

The spelling of 1009105 in words is "one million, nine thousand, one hundred five".