115287871 has 2 divisors, whose sum is σ = 115287872. Its totient is φ = 115287870.

The previous prime is 115287869. The next prime is 115287917. The reversal of 115287871 is 178782511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115287871 - 2¹ = 115287869 is a prime.

Together with 115287869, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115287811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57643935 + 57643936.

It is an arithmetic number, because the mean of its divisors is an integer number (57643936).

Almost surely, 2^115287871 is an apocalyptic number.

115287871 is a deficient number, since it is larger than the sum of its proper divisors (1).

115287871 is an equidigital number, since it uses as much as digits as its factorization.

115287871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31360, while the sum is 40.

The square root of 115287871 is about 10737.2189602336. The cubic root of 115287871 is about 486.6998432899.

The spelling of 115287871 in words is "one hundred fifteen million, two hundred eighty-seven thousand, eight hundred seventy-one".