118912087 has 4 divisors (see below), whose sum is σ = 135899536. Its totient is φ = 101924640.

The previous prime is 118912061. The next prime is 118912091. The reversal of 118912087 is 780219811.

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 118912087 - 2¹¹ = 118910039 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 (118912097) 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, 8493714 + ... + 8493727.

It is an arithmetic number, because the mean of its divisors is an integer number (33974884).

Almost surely, 2^118912087 is an apocalyptic number.

118912087 is a deficient number, since it is larger than the sum of its proper divisors (16987449).

118912087 is an equidigital number, since it uses as much as digits as its factorization.

118912087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16987448.

The product of its (nonzero) digits is 8064, while the sum is 37.

The square root of 118912087 is about 10904.6818844018. The cubic root of 118912087 is about 491.7473185833.

The spelling of 118912087 in words is "one hundred eighteen million, nine hundred twelve thousand, eighty-seven".