11218814 has 4 divisors (see below), whose sum is σ = 16828224. Its totient is φ = 5609406.

The previous prime is 11218813. The next prime is 11218817. The reversal of 11218814 is 41881211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41881211 = 5437 ⋅7703.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11218811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2804702 + ... + 2804705.

It is an arithmetic number, because the mean of its divisors is an integer number (4207056).

Almost surely, 2^11218814 is an apocalyptic number.

11218814 is a deficient number, since it is larger than the sum of its proper divisors (5609410).

11218814 is an equidigital number, since it uses as much as digits as its factorization.

11218814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5609409.

The product of its digits is 512, while the sum is 26.

The square root of 11218814 is about 3349.4498055651. The cubic root of 11218814 is about 223.8629981762.

The spelling of 11218814 in words is "eleven million, two hundred eighteen thousand, eight hundred fourteen".