120545 has 4 divisors (see below), whose sum is σ = 144660. Its totient is φ = 96432.

The previous prime is 120539. The next prime is 120551. The reversal of 120545 is 545021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545021 = 79 ⋅6899.

It is an interprime number because it is at equal distance from previous prime (120539) and next prime (120551).

It can be written as a sum of positive squares in 2 ways, for example, as 59536 + 61009 = 244^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 120545 - 2¹⁴ = 104161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12050 + ... + 12059.

It is an arithmetic number, because the mean of its divisors is an integer number (36165).

2¹²⁰⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

120545 is a deficient number, since it is larger than the sum of its proper divisors (24115).

120545 is an equidigital number, since it uses as much as digits as its factorization.

120545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24114.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 120545 is about 347.1959101142. The cubic root of 120545 is about 49.3988001479.

Adding to 120545 its reverse (545021), we get a palindrome (665566).

The spelling of 120545 in words is "one hundred twenty thousand, five hundred forty-five".