181112256 has 252 divisors, whose sum is σ = 598837512. Its totient is φ = 52005888.

The previous prime is 181112251. The next prime is 181112257. The reversal of 181112256 is 652211181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181112251) 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 35 ways as a sum of consecutive naturals, for example, 2703135 + ... + 2703201.

Almost surely, 2^181112256 is an apocalyptic number.

181112256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181112256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299418756).

181112256 is an abundant number, since it is smaller than the sum of its proper divisors (417725256).

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

181112256 is a wasteful number, since it uses less digits than its factorization.

181112256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 104 counting only the distinct ones).

The product of its digits is 960, while the sum is 27.

The square root of 181112256 is about 13457.7953617968. The cubic root of 181112256 is about 565.7822000760.

The spelling of 181112256 in words is "one hundred eighty-one million, one hundred twelve thousand, two hundred fifty-six".