116108181 has 32 divisors (see below), whose sum is σ = 208154880. Its totient is φ = 62443008.

The previous prime is 116108159. The next prime is 116108191. The reversal of 116108181 is 181801611.

It is not a de Polignac number, because 116108181 - 2⁹ = 116107669 is a prime.

It is a super-2 number, since 2×116108181² = 26962219390257522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116108191) 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 in 31 ways as a sum of consecutive naturals, for example, 14856 + ... + 21281.

It is an arithmetic number, because the mean of its divisors is an integer number (6504840).

Almost surely, 2^116108181 is an apocalyptic number.

It is an amenable number.

116108181 is a deficient number, since it is larger than the sum of its proper divisors (92046699).

116108181 is a wasteful number, since it uses less digits than its factorization.

116108181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36170 (or 36164 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 27.

The square root of 116108181 is about 10775.3506207455. The cubic root of 116108181 is about 487.8514578020.

Adding to 116108181 its reverse (181801611), we get a palindrome (297909792).

It can be divided in two parts, 11610 and 8181, that added together give a palindrome (19791).

The spelling of 116108181 in words is "one hundred sixteen million, one hundred eight thousand, one hundred eighty-one".