116112181 has 2 divisors, whose sum is σ = 116112182. Its totient is φ = 116112180.

The previous prime is 116112167. The next prime is 116112187. The reversal of 116112181 is 181211611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112148100 + 3964081 = 10590^2 + 1991^2 .

It is a cyclic number.

It is not a de Polignac number, because 116112181 - 2⁷ = 116112053 is a prime.

It is a super-2 number, since 2×116112181² = 26964077153153522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116112187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58056090 + 58056091.

It is an arithmetic number, because the mean of its divisors is an integer number (58056091).

Almost surely, 2^116112181 is an apocalyptic number.

It is an amenable number.

116112181 is a deficient number, since it is larger than the sum of its proper divisors (1).

116112181 is an equidigital number, since it uses as much as digits as its factorization.

116112181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 22.

The square root of 116112181 is about 10775.5362279564. The cubic root of 116112181 is about 487.8570600011.

Adding to 116112181 its reverse (181211611), we get a palindrome (297323792).

The spelling of 116112181 in words is "one hundred sixteen million, one hundred twelve thousand, one hundred eighty-one".