116385289 has 2 divisors, whose sum is σ = 116385290. Its totient is φ = 116385288.

The previous prime is 116385233. The next prime is 116385293. The reversal of 116385289 is 982583611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107433225 + 8952064 = 10365^2 + 2992^2 .

It is a cyclic number.

It is not a de Polignac number, because 116385289 - 2⁷ = 116385161 is a prime.

It is a super-2 number, since 2×116385289² = 27091070991227042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (116385209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58192644 + 58192645.

It is an arithmetic number, because the mean of its divisors is an integer number (58192645).

Almost surely, 2^116385289 is an apocalyptic number.

It is an amenable number.

116385289 is a deficient number, since it is larger than the sum of its proper divisors (1).

116385289 is an equidigital number, since it uses as much as digits as its factorization.

116385289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 43.

The square root of 116385289 is about 10788.2013792847. The cubic root of 116385289 is about 488.2392574533.

The spelling of 116385289 in words is "one hundred sixteen million, three hundred eighty-five thousand, two hundred eighty-nine".