11118518 has 4 divisors (see below), whose sum is σ = 16677780. Its totient is φ = 5559258.

The previous prime is 11118517. The next prime is 11118521. The reversal of 11118518 is 81581111.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11118511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2779628 + ... + 2779631.

It is an arithmetic number, because the mean of its divisors is an integer number (4169445).

Almost surely, 2^11118518 is an apocalyptic number.

11118518 is a deficient number, since it is larger than the sum of its proper divisors (5559262).

11118518 is an equidigital number, since it uses as much as digits as its factorization.

11118518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559261.

The product of its digits is 320, while the sum is 26.

The square root of 11118518 is about 3334.4441815691. Note that the first 3 decimals coincide. The cubic root of 11118518 is about 223.1938898350.

Adding to 11118518 its reverse (81581111), we get a palindrome (92699629).

The spelling of 11118518 in words is "eleven million, one hundred eighteen thousand, five hundred eighteen".