118668287 has 4 divisors (see below), whose sum is σ = 121875576. Its totient is φ = 115461000.

The previous prime is 118668283. The next prime is 118668307. The reversal of 118668287 is 782866811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 118668287 - 2² = 118668283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118668283) 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 in 3 ways as a sum of consecutive naturals, for example, 1603589 + ... + 1603662.

It is an arithmetic number, because the mean of its divisors is an integer number (30468894).

Almost surely, 2^118668287 is an apocalyptic number.

118668287 is a deficient number, since it is larger than the sum of its proper divisors (3207289).

118668287 is an equidigital number, since it uses as much as digits as its factorization.

118668287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207288.

The product of its digits is 258048, while the sum is 47.

The square root of 118668287 is about 10893.4974640838. The cubic root of 118668287 is about 491.4110196519.

The spelling of 118668287 in words is "one hundred eighteen million, six hundred sixty-eight thousand, two hundred eighty-seven".