118368787 has 4 divisors (see below), whose sum is σ = 123515280. Its totient is φ = 113222296.

The previous prime is 118368779. The next prime is 118368793. The reversal of 118368787 is 787863811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 787863811 = 7 ⋅112551973.

It is a cyclic number.

It is not a de Polignac number, because 118368787 - 2³ = 118368779 is a prime.

It is a super-2 number, since 2×118368787² = 28022339471702738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118368787.

It is not an unprimeable number, because it can be changed into a prime (118368797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2573212 + ... + 2573257.

It is an arithmetic number, because the mean of its divisors is an integer number (30878820).

Almost surely, 2^118368787 is an apocalyptic number.

118368787 is a deficient number, since it is larger than the sum of its proper divisors (5146493).

118368787 is an equidigital number, since it uses as much as digits as its factorization.

118368787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5146492.

The product of its digits is 451584, while the sum is 49.

The square root of 118368787 is about 10879.7420465744. The cubic root of 118368787 is about 490.9972567849.

The spelling of 118368787 in words is "one hundred eighteen million, three hundred sixty-eight thousand, seven hundred eighty-seven".