120445 has 16 divisors (see below), whose sum is σ = 166320. Its totient is φ = 82944.

The previous prime is 120431. The next prime is 120473. The reversal of 120445 is 544021.

It can be written as a sum of positive squares in 8 ways, for example, as 36 + 120409 = 6^2 + 347^2 .

It is a 5-Lehmer number, since φ(120445) divides (120445-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 120445 - 2⁵ = 120413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1051 + ... + 1159.

It is an arithmetic number, because the mean of its divisors is an integer number (10395).

2¹²⁰⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

120445 is a deficient number, since it is larger than the sum of its proper divisors (45875).

120445 is a wasteful number, since it uses less digits than its factorization.

120445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 120445 is about 347.0518693222. The cubic root of 120445 is about 49.3851365184.

Adding to 120445 its reverse (544021), we get a palindrome (664466).

It can be divided in two parts, 120 and 445, that added together give a palindrome (565).

The spelling of 120445 in words is "one hundred twenty thousand, four hundred forty-five".