120440755 has 4 divisors (see below), whose sum is σ = 144528912. Its totient is φ = 96352600.

The previous prime is 120440731. The next prime is 120440759. The reversal of 120440755 is 557044021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 557044021 = 2347 ⋅237343.

It is not a de Polignac number, because 120440755 - 2¹¹ = 120438707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120440759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12044071 + ... + 12044080.

It is an arithmetic number, because the mean of its divisors is an integer number (36132228).

Almost surely, 2^120440755 is an apocalyptic number.

120440755 is a deficient number, since it is larger than the sum of its proper divisors (24088157).

120440755 is an equidigital number, since it uses as much as digits as its factorization.

120440755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24088156.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 120440755 is about 10974.5503324738. The cubic root of 120440755 is about 493.8455633007.

Adding to 120440755 its reverse (557044021), we get a palindrome (677484776).

The spelling of 120440755 in words is "one hundred twenty million, four hundred forty thousand, seven hundred fifty-five".