106618 has 4 divisors (see below), whose sum is σ = 159930. Its totient is φ = 53308.

The previous prime is 106591. The next prime is 106619. The reversal of 106618 is 816601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 816601 = 19 ⋅42979.

It can be written as a sum of positive squares in only one way, i.e., 97969 + 8649 = 313^2 + 93^2 .

It is a super-2 number, since 2×106618² = 22734795848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (106619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26653 + ... + 26656.

2¹⁰⁶⁶¹⁸ is an apocalyptic number.

106618 is a deficient number, since it is larger than the sum of its proper divisors (53312).

106618 is an equidigital number, since it uses as much as digits as its factorization.

106618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53311.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 106618 is about 326.5241185579. The cubic root of 106618 is about 47.4180303735.

The spelling of 106618 in words is "one hundred six thousand, six hundred eighteen".