11618 has 8 divisors (see below), whose sum is σ = 18012. Its totient is φ = 5616.

The previous prime is 11617. The next prime is 11621. The reversal of 11618 is 81611.

It is a happy number.

11618 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 11449 + 169 = 107^2 + 13^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 11596 and 11605.

It is not an unprimeable number, because it can be changed into a prime (11617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5 + ... + 152.

2¹¹⁶¹⁸ is an apocalyptic number.

11618 is a deficient number, since it is larger than the sum of its proper divisors (6394).

11618 is a wasteful number, since it uses less digits than its factorization.

11618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196.

The product of its digits is 48, while the sum is 17.

The square root of 11618 is about 107.7868266534. The cubic root of 11618 is about 22.6487266737.

Multiplying 11618 by its sum of digits (17), we get a triangular number (197506 = T₆₂₈).

The spelling of 11618 in words is "eleven thousand, six hundred eighteen".