120605 has 4 divisors (see below), whose sum is σ = 144732. Its totient is φ = 96480.

The previous prime is 120587. The next prime is 120607. The reversal of 120605 is 506021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506021 = 29 ⋅17449.

It can be written as a sum of positive squares in 2 ways, for example, as 38809 + 81796 = 197^2 + 286^2 .

It is not a de Polignac number, because 120605 - 2⁸ = 120349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12056 + ... + 12065.

It is an arithmetic number, because the mean of its divisors is an integer number (36183).

2¹²⁰⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

120605 is a deficient number, since it is larger than the sum of its proper divisors (24127).

120605 is an equidigital number, since it uses as much as digits as its factorization.

120605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24126.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 120605 is about 347.2823059126. The cubic root of 120605 is about 49.4069946987.

Adding to 120605 its reverse (506021), we get a palindrome (626626).

The spelling of 120605 in words is "one hundred twenty thousand, six hundred five".