120778 has 8 divisors (see below), whose sum is σ = 207072. Its totient is φ = 51756.

The previous prime is 120767. The next prime is 120779. The reversal of 120778 is 877021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (120779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4300 + ... + 4327.

It is an arithmetic number, because the mean of its divisors is an integer number (25884).

2¹²⁰⁷⁷⁸ is an apocalyptic number.

120778 is a deficient number, since it is larger than the sum of its proper divisors (86294).

120778 is an equidigital number, since it uses as much as digits as its factorization.

120778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8636.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 120778 is about 347.5312935550. The cubic root of 120778 is about 49.4306071151.

Adding to 120778 its reverse (877021), we get a palindrome (997799).

It can be divided in two parts, 120 and 778, that added together give a palindrome (898).

The spelling of 120778 in words is "one hundred twenty thousand, seven hundred seventy-eight".