115187587 has 2 divisors, whose sum is σ = 115187588. Its totient is φ = 115187586.

The previous prime is 115187561. The next prime is 115187591. The reversal of 115187587 is 785781511.

It is a strong prime.

It is an emirp because it is prime and its reverse (785781511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115187587 - 2¹⁹ = 114663299 is a prime.

It is not a weakly prime, because it can be changed into another prime (115157587) 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, 57593793 + 57593794.

It is an arithmetic number, because the mean of its divisors is an integer number (57593794).

Almost surely, 2^115187587 is an apocalyptic number.

115187587 is a deficient number, since it is larger than the sum of its proper divisors (1).

115187587 is an equidigital number, since it uses as much as digits as its factorization.

115187587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78400, while the sum is 43.

The square root of 115187587 is about 10732.5480199252. The cubic root of 115187587 is about 486.5586825428.

The spelling of 115187587 in words is "one hundred fifteen million, one hundred eighty-seven thousand, five hundred eighty-seven".