120550 has 12 divisors (see below), whose sum is σ = 224316. Its totient is φ = 48200.

The previous prime is 120539. The next prime is 120551. The reversal of 120550 is 55021.

It is a self number, because there is not a number n which added to its sum of digits gives 120550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120551) by changing a digit.

120550 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 5 ways as a sum of consecutive naturals, for example, 1156 + ... + 1255.

It is an arithmetic number, because the mean of its divisors is an integer number (18693).

2¹²⁰⁵⁵⁰ is an apocalyptic number.

120550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120550 is a deficient number, since it is larger than the sum of its proper divisors (103766).

120550 is a wasteful number, since it uses less digits than its factorization.

120550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423 (or 2418 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 120550 is about 347.2031105851. The cubic root of 120550 is about 49.3994831310.

Adding to 120550 its reverse (55021), we get a palindrome (175571).

The spelling of 120550 in words is "one hundred twenty thousand, five hundred fifty".