120455 has 4 divisors (see below), whose sum is σ = 144552. Its totient is φ = 96360.

The previous prime is 120431. The next prime is 120473. The reversal of 120455 is 554021.

120455 = T₂₁₇ + T₂₁₈ + ... + T₂₂₁.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120455 - 2⁶ = 120391 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 12041 + ... + 12050.

It is an arithmetic number, because the mean of its divisors is an integer number (36138).

2¹²⁰⁴⁵⁵ is an apocalyptic number.

120455 is a deficient number, since it is larger than the sum of its proper divisors (24097).

120455 is an equidigital number, since it uses as much as digits as its factorization.

120455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24096.

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

The square root of 120455 is about 347.0662760915. The cubic root of 120455 is about 49.3865032216.

Adding to 120455 its reverse (554021), we get a palindrome (674476).

It can be divided in two parts, 120 and 455, that added together give a palindrome (575).

The spelling of 120455 in words is "one hundred twenty thousand, four hundred fifty-five".