115646387 has 2 divisors, whose sum is σ = 115646388. Its totient is φ = 115646386.

The previous prime is 115646353. The next prime is 115646389. The reversal of 115646387 is 783646511.

It is a strong prime.

It is an emirp because it is prime and its reverse (783646511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115646387 - 2¹⁰ = 115645363 is a prime.

Together with 115646389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115646389) 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, 57823193 + 57823194.

It is an arithmetic number, because the mean of its divisors is an integer number (57823194).

Almost surely, 2^115646387 is an apocalyptic number.

115646387 is a deficient number, since it is larger than the sum of its proper divisors (1).

115646387 is an equidigital number, since it uses as much as digits as its factorization.

115646387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 115646387 is about 10753.9010131208. The cubic root of 115646387 is about 487.2038255344.

The spelling of 115646387 in words is "one hundred fifteen million, six hundred forty-six thousand, three hundred eighty-seven".