116218329 has 4 divisors (see below), whose sum is σ = 154957776. Its totient is φ = 77478884.

The previous prime is 116218321. The next prime is 116218331. The reversal of 116218329 is 923812611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 116218329 - 2³ = 116218321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116218329.

It is not an unprimeable number, because it can be changed into a prime (116218321) 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 3 ways as a sum of consecutive naturals, for example, 19369719 + ... + 19369724.

It is an arithmetic number, because the mean of its divisors is an integer number (38739444).

Almost surely, 2^116218329 is an apocalyptic number.

It is an amenable number.

116218329 is a deficient number, since it is larger than the sum of its proper divisors (38739447).

116218329 is an equidigital number, since it uses as much as digits as its factorization.

116218329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38739446.

The product of its digits is 5184, while the sum is 33.

The square root of 116218329 is about 10780.4605189203. The cubic root of 116218329 is about 488.0056785709.

It can be divided in two parts, 1162 and 18329, that added together give a palindrome (19491).

The spelling of 116218329 in words is "one hundred sixteen million, two hundred eighteen thousand, three hundred twenty-nine".