112256581 has 2 divisors, whose sum is σ = 112256582. Its totient is φ = 112256580.

The previous prime is 112256569. The next prime is 112256657. The reversal of 112256581 is 185652211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111640356 + 616225 = 10566^2 + 785^2 .

It is a cyclic number.

It is not a de Polignac number, because 112256581 - 2¹⁷ = 112125509 is a prime.

It is a super-2 number, since 2×112256581² = 25203079955619122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112256561) 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 as a sum of consecutive naturals, namely, 56128290 + 56128291.

It is an arithmetic number, because the mean of its divisors is an integer number (56128291).

Almost surely, 2^112256581 is an apocalyptic number.

It is an amenable number.

112256581 is a deficient number, since it is larger than the sum of its proper divisors (1).

112256581 is an equidigital number, since it uses as much as digits as its factorization.

112256581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 31.

The square root of 112256581 is about 10595.1206222487. The cubic root of 112256581 is about 482.3962653849.

The spelling of 112256581 in words is "one hundred twelve million, two hundred fifty-six thousand, five hundred eighty-one".