116221559 has 2 divisors, whose sum is σ = 116221560. Its totient is φ = 116221558.

The previous prime is 116221549. The next prime is 116221597. The reversal of 116221559 is 955122611.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116221559 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116221549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58110779 + 58110780.

It is an arithmetic number, because the mean of its divisors is an integer number (58110780).

Almost surely, 2^116221559 is an apocalyptic number.

116221559 is a deficient number, since it is larger than the sum of its proper divisors (1).

116221559 is an equidigital number, since it uses as much as digits as its factorization.

116221559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 32.

The square root of 116221559 is about 10780.6103259509. The cubic root of 116221559 is about 488.0101994979.

The spelling of 116221559 in words is "one hundred sixteen million, two hundred twenty-one thousand, five hundred fifty-nine".