981824113 has 2 divisors, whose sum is σ = 981824114. Its totient is φ = 981824112.

The previous prime is 981824101. The next prime is 981824141. The reversal of 981824113 is 311428189.

981824113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 904084624 + 77739489 = 30068^2 + 8817^2 .

It is an emirp because it is prime and its reverse (311428189) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-981824113 is a prime.

It is not a weakly prime, because it can be changed into another prime (981824153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490912056 + 490912057.

It is an arithmetic number, because the mean of its divisors is an integer number (490912057).

Almost surely, 2^981824113 is an apocalyptic number.

It is an amenable number.

981824113 is a deficient number, since it is larger than the sum of its proper divisors (1).

981824113 is an equidigital number, since it uses as much as digits as its factorization.

981824113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 37.

The square root of 981824113 is about 31334.0727164536. The cubic root of 981824113 is about 993.9042888059.

The spelling of 981824113 in words is "nine hundred eighty-one million, eight hundred twenty-four thousand, one hundred thirteen".