110879981 has 2 divisors, whose sum is σ = 110879982. Its totient is φ = 110879980.

The previous prime is 110879969. The next prime is 110879999. The reversal of 110879981 is 189978011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106296100 + 4583881 = 10310^2 + 2141^2 .

It is an emirp because it is prime and its reverse (189978011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110879981 is a prime.

It is a super-2 number, since 2×110879981² = 24588740373120722, 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 (110879911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55439990 + 55439991.

It is an arithmetic number, because the mean of its divisors is an integer number (55439991).

Almost surely, 2^110879981 is an apocalyptic number.

It is an amenable number.

110879981 is a deficient number, since it is larger than the sum of its proper divisors (1).

110879981 is an equidigital number, since it uses as much as digits as its factorization.

110879981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 44.

The square root of 110879981 is about 10529.9563626826. The cubic root of 110879981 is about 480.4162780584.

The spelling of 110879981 in words is "one hundred ten million, eight hundred seventy-nine thousand, nine hundred eighty-one".