120530256 has 80 divisors (see below), whose sum is σ = 388213248. Its totient is φ = 31305600.

The previous prime is 120530251. The next prime is 120530261. The reversal of 120530256 is 652035021.

It is an interprime number because it is at equal distance from previous prime (120530251) and next prime (120530261).

It is a super-2 number, since 2×120530256² = 29055085222851072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120530251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12610 + ... + 20001.

Almost surely, 2^120530256 is an apocalyptic number.

120530256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

120530256 is an abundant number, since it is smaller than the sum of its proper divisors (267682992).

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

120530256 is a wasteful number, since it uses less digits than its factorization.

120530256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32640 (or 32634 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 120530256 is about 10978.6272365902. The cubic root of 120530256 is about 493.9678605741.

Adding to 120530256 its reverse (652035021), we get a palindrome (772565277).

It can be divided in two parts, 120530 and 256, that added together give a triangular number (120786 = T₄₉₁).

The spelling of 120530256 in words is "one hundred twenty million, five hundred thirty thousand, two hundred fifty-six".