11479109 has 4 divisors (see below), whose sum is σ = 11556300. Its totient is φ = 11401920.

The previous prime is 11479081. The next prime is 11479133. The reversal of 11479109 is 90197411.

It is a happy number.

11479109 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

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 5244100 + 6235009 = 2290^2 + 2497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11479109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11479189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38372 + ... + 38669.

It is an arithmetic number, because the mean of its divisors is an integer number (2889075).

Almost surely, 2^11479109 is an apocalyptic number.

It is an amenable number.

11479109 is a deficient number, since it is larger than the sum of its proper divisors (77191).

11479109 is an equidigital number, since it uses as much as digits as its factorization.

11479109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77190.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 11479109 is about 3388.0833815005. The cubic root of 11479109 is about 225.5811085756.

The spelling of 11479109 in words is "eleven million, four hundred seventy-nine thousand, one hundred nine".