120810 has 16 divisors (see below), whose sum is σ = 290016. Its totient is φ = 32208.

The previous prime is 120779. The next prime is 120811. The reversal of 120810 is 18021.

It is a happy number.

It is a super-2 number, since 2×120810² = 29190112200, which contains 22 as substring.

120810 is a modest number, since divided by 810 gives 120 as remainder.

It is not an unprimeable number, because it can be changed into a prime (120811) by changing a digit.

120810 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1984 + ... + 2043.

It is an arithmetic number, because the mean of its divisors is an integer number (18126).

2¹²⁰⁸¹⁰ is an apocalyptic number.

120810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120810 is an abundant number, since it is smaller than the sum of its proper divisors (169206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120810 is a wasteful number, since it uses less digits than its factorization.

120810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 120810 is about 347.5773295254. The cubic root of 120810 is about 49.4349722582.

Adding to 120810 its reverse (18021), we get a palindrome (138831).

The spelling of 120810 in words is "one hundred twenty thousand, eight hundred ten".