120020455 has 16 divisors (see below), whose sum is σ = 146966400. Its totient is φ = 94066720.

The previous prime is 120020449. The next prime is 120020471. The reversal of 120020455 is 554020021.

It is not a de Polignac number, because 120020455 - 2³ = 120020447 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, 123120 + ... + 124090.

It is an arithmetic number, because the mean of its divisors is an integer number (9185400).

Almost surely, 2^120020455 is an apocalyptic number.

120020455 is a deficient number, since it is larger than the sum of its proper divisors (26945945).

120020455 is an equidigital number, since it uses as much as digits as its factorization.

120020455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 120020455 is about 10955.3847490629. The cubic root of 120020455 is about 493.2704390338.

Adding to 120020455 its reverse (554020021), we get a palindrome (674040476).

The spelling of 120020455 in words is "one hundred twenty million, twenty thousand, four hundred fifty-five".