11138818 has 8 divisors (see below), whose sum is σ = 16749180. Its totient is φ = 5555760.

The previous prime is 11138767. The next prime is 11138821. The reversal of 11138818 is 81883111.

11138818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11135569 + 3249 = 3337^2 + 57^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11138818.

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, 5773 + ... + 7456.

Almost surely, 2^11138818 is an apocalyptic number.

11138818 is a deficient number, since it is larger than the sum of its proper divisors (5610362).

11138818 is a wasteful number, since it uses less digits than its factorization.

11138818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13652.

The product of its digits is 1536, while the sum is 31.

The square root of 11138818 is about 3337.4867790000. The cubic root of 11138818 is about 223.3296417795.

The spelling of 11138818 in words is "eleven million, one hundred thirty-eight thousand, eight hundred eighteen".