118987499 has 2 divisors, whose sum is σ = 118987500. Its totient is φ = 118987498.

The previous prime is 118987459. The next prime is 118987501. The reversal of 118987499 is 994789811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118987499 - 2²⁰ = 117938923 is a prime.

Together with 118987501, 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 (118987459) 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, 59493749 + 59493750.

It is an arithmetic number, because the mean of its divisors is an integer number (59493750).

Almost surely, 2^118987499 is an apocalyptic number.

118987499 is a deficient number, since it is larger than the sum of its proper divisors (1).

118987499 is an equidigital number, since it uses as much as digits as its factorization.

118987499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 56.

The square root of 118987499 is about 10908.1391171913. The cubic root of 118987499 is about 491.8512491795.

It can be divided in two parts, 1189 and 87499, that added together give a palindrome (88688).

The spelling of 118987499 in words is "one hundred eighteen million, nine hundred eighty-seven thousand, four hundred ninety-nine".