120656 has 10 divisors (see below), whose sum is σ = 233802. Its totient is φ = 60320.

The previous prime is 120647. The next prime is 120661. The reversal of 120656 is 656021.

120656 is nontrivially palindromic in base 6.

It can be written as a sum of positive squares in only one way, i.e., 80656 + 40000 = 284^2 + 200^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3755 + ... + 3786.

2¹²⁰⁶⁵⁶ is an apocalyptic number.

120656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

120656 is a deficient number, since it is larger than the sum of its proper divisors (113146).

120656 is an equidigital number, since it uses as much as digits as its factorization.

120656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7549 (or 7543 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 120656 is about 347.3557254458. The cubic root of 120656 is about 49.4139579303.

Adding to 120656 its reverse (656021), we get a palindrome (776677).

It can be divided in two parts, 12065 and 6, that multiplied together give a triangular number (72390 = T₃₈₀).

The spelling of 120656 in words is "one hundred twenty thousand, six hundred fifty-six".