106645 has 16 divisors (see below), whose sum is σ = 160128. Its totient is φ = 66240.

The previous prime is 106637. The next prime is 106649. The reversal of 106645 is 546601.

It is not a de Polignac number, because 106645 - 2³ = 106637 is a prime.

It is a super-2 number, since 2×106645² = 22746312050, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106649) 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 15 ways as a sum of consecutive naturals, for example, 247 + ... + 523.

It is an arithmetic number, because the mean of its divisors is an integer number (10008).

2¹⁰⁶⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

106645 is a deficient number, since it is larger than the sum of its proper divisors (53483).

106645 is a wasteful number, since it uses less digits than its factorization.

106645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 106645 is about 326.5654605129. The cubic root of 106645 is about 47.4220327582.

It can be divided in two parts, 1066 and 45, that added together give a palindrome (1111).

The spelling of 106645 in words is "one hundred six thousand, six hundred forty-five".