112790981 has 2 divisors, whose sum is σ = 112790982. Its totient is φ = 112790980.

The previous prime is 112790917. The next prime is 112790987. The reversal of 112790981 is 189097211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112550881 + 240100 = 10609^2 + 490^2 .

It is a cyclic number.

It is not a de Polignac number, because 112790981 - 2⁶ = 112790917 is a prime.

It is a super-2 number, since 2×112790981² = 25443610789884722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112790987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56395490 + 56395491.

It is an arithmetic number, because the mean of its divisors is an integer number (56395491).

Almost surely, 2^112790981 is an apocalyptic number.

It is an amenable number.

112790981 is a deficient number, since it is larger than the sum of its proper divisors (1).

112790981 is an equidigital number, since it uses as much as digits as its factorization.

112790981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 38.

The square root of 112790981 is about 10620.3098354050. The cubic root of 112790981 is about 483.1605400035.

The spelling of 112790981 in words is "one hundred twelve million, seven hundred ninety thousand, nine hundred eighty-one".