116242289 has 2 divisors, whose sum is σ = 116242290. Its totient is φ = 116242288.

The previous prime is 116242279. The next prime is 116242297. The reversal of 116242289 is 982242611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108513889 + 7728400 = 10417^2 + 2780^2 .

It is a cyclic number.

It is not a de Polignac number, because 116242289 - 2¹² = 116238193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (116242229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58121144 + 58121145.

It is an arithmetic number, because the mean of its divisors is an integer number (58121145).

Almost surely, 2^116242289 is an apocalyptic number.

It is an amenable number.

116242289 is a deficient number, since it is larger than the sum of its proper divisors (1).

116242289 is an equidigital number, since it uses as much as digits as its factorization.

116242289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 35.

The square root of 116242289 is about 10781.5717314314. The cubic root of 116242289 is about 488.0392126176.

The spelling of 116242289 in words is "one hundred sixteen million, two hundred forty-two thousand, two hundred eighty-nine".