115516201 has 2 divisors, whose sum is σ = 115516202. Its totient is φ = 115516200.

The previous prime is 115516169. The next prime is 115516217. The reversal of 115516201 is 102615511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58905625 + 56610576 = 7675^2 + 7524^2 .

It is an emirp because it is prime and its reverse (102615511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115516201 - 2⁵ = 115516169 is a prime.

It is not a weakly prime, because it can be changed into another prime (115516231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57758100 + 57758101.

It is an arithmetic number, because the mean of its divisors is an integer number (57758101).

Almost surely, 2^115516201 is an apocalyptic number.

It is an amenable number.

115516201 is a deficient number, since it is larger than the sum of its proper divisors (1).

115516201 is an equidigital number, since it uses as much as digits as its factorization.

115516201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 115516201 is about 10747.8463424074. The cubic root of 115516201 is about 487.0209377554.

The spelling of 115516201 in words is "one hundred fifteen million, five hundred sixteen thousand, two hundred one".