113822281 has 2 divisors, whose sum is σ = 113822282. Its totient is φ = 113822280.

The previous prime is 113822251. The next prime is 113822321. The reversal of 113822281 is 182228311.

It is the 4356-th star number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104366656 + 9455625 = 10216^2 + 3075^2 .

It is an emirp because it is prime and its reverse (182228311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113822281 - 2⁷ = 113822153 is a prime.

It is a super-2 number, since 2×113822281² = 25911023304085922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113822201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56911140 + 56911141.

It is an arithmetic number, because the mean of its divisors is an integer number (56911141).

Almost surely, 2^113822281 is an apocalyptic number.

It is an amenable number.

113822281 is a deficient number, since it is larger than the sum of its proper divisors (1).

113822281 is an equidigital number, since it uses as much as digits as its factorization.

113822281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 28.

The square root of 113822281 is about 10668.7525512592. The cubic root of 113822281 is about 484.6286610940.

The spelling of 113822281 in words is "one hundred thirteen million, eight hundred twenty-two thousand, two hundred eighty-one".