118134987 has 8 divisors (see below), whose sum is σ = 157706640. Its totient is φ = 78660000.

The previous prime is 118134977. The next prime is 118134997. The reversal of 118134987 is 789431811.

It is an interprime number because it is at equal distance from previous prime (118134977) and next prime (118134997).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 118134987 - 2⁴ = 118134971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118134967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21264 + ... + 26237.

It is an arithmetic number, because the mean of its divisors is an integer number (19713330).

Almost surely, 2^118134987 is an apocalyptic number.

118134987 is a deficient number, since it is larger than the sum of its proper divisors (39571653).

118134987 is an equidigital number, since it uses as much as digits as its factorization.

118134987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48333.

The product of its digits is 48384, while the sum is 42.

The square root of 118134987 is about 10868.9919955808. The cubic root of 118134987 is about 490.6737739224.

The spelling of 118134987 in words is "one hundred eighteen million, one hundred thirty-four thousand, nine hundred eighty-seven".