11000005 has 8 divisors (see below), whose sum is σ = 13381272. Its totient is φ = 8679168.

The previous prime is 10999997. The next prime is 11000027. The reversal of 11000005 is 50000011.

It can be written as a sum of positive squares in 4 ways, for example, as 123201 + 10876804 = 351^2 + 3298^2 .

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 11000005 - 2³ = 10999997 is a prime.

It is a super-2 number, since 2×11000005² = 242000220000050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14704 + ... + 15433.

It is an arithmetic number, because the mean of its divisors is an integer number (1672659).

Almost surely, 2^11000005 is an apocalyptic number.

It is an amenable number.

11000005 is a deficient number, since it is larger than the sum of its proper divisors (2381267).

11000005 is an equidigital number, since it uses as much as digits as its factorization.

11000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30215.

The product of its (nonzero) digits is 5, while the sum is 7.

The square root of 11000005 is about 3316.6255441337. The cubic root of 11000005 is about 222.3980427536.

Adding to 11000005 its reverse (50000011), we get a palindrome (61000016).

The spelling of 11000005 in words is "eleven million, five", and thus it is an aban number and an uban number.