115332209 has 2 divisors, whose sum is σ = 115332210. Its totient is φ = 115332208.

The previous prime is 115332193. The next prime is 115332211. The reversal of 115332209 is 902233511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69472225 + 45859984 = 8335^2 + 6772^2 .

It is a cyclic number.

It is not a de Polignac number, because 115332209 - 2⁴ = 115332193 is a prime.

It is a Sophie Germain prime.

Together with 115332211, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (115332229) 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 as a sum of consecutive naturals, namely, 57666104 + 57666105.

It is an arithmetic number, because the mean of its divisors is an integer number (57666105).

Almost surely, 2^115332209 is an apocalyptic number.

It is an amenable number.

115332209 is a deficient number, since it is larger than the sum of its proper divisors (1).

115332209 is an equidigital number, since it uses as much as digits as its factorization.

115332209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 115332209 is about 10739.2834490947. The cubic root of 115332209 is about 486.7622277994.

The spelling of 115332209 in words is "one hundred fifteen million, three hundred thirty-two thousand, two hundred nine".