11138009 has 8 divisors (see below), whose sum is σ = 12414240. Its totient is φ = 9930816.

The previous prime is 11137993. The next prime is 11138033. The reversal of 11138009 is 90083111.

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 11138009 - 2⁴ = 11137993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11138069) 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, 16919 + ... + 17564.

It is an arithmetic number, because the mean of its divisors is an integer number (1551780).

Almost surely, 2^11138009 is an apocalyptic number.

11138009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11138009 is a deficient number, since it is larger than the sum of its proper divisors (1276231).

11138009 is a wasteful number, since it uses less digits than its factorization.

11138009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34519.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 11138009 is about 3337.3655778173. The cubic root of 11138009 is about 223.3242349205.

The spelling of 11138009 in words is "eleven million, one hundred thirty-eight thousand, nine".