118200087 has 16 divisors (see below), whose sum is σ = 175298560. Its totient is φ = 78715800.

The previous prime is 118200073. The next prime is 118200109. The reversal of 118200087 is 780002811.

It is not a de Polignac number, because 118200087 - 2¹⁶ = 118134551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 118200087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118200287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33162 + ... + 36552.

It is an arithmetic number, because the mean of its divisors is an integer number (10956160).

Almost surely, 2^118200087 is an apocalyptic number.

118200087 is a deficient number, since it is larger than the sum of its proper divisors (57098473).

118200087 is a wasteful number, since it uses less digits than its factorization.

118200087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691 (or 4685 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 118200087 is about 10871.9863410510. The cubic root of 118200087 is about 490.7638883409.

Adding to 118200087 its reverse (780002811), we get a palindrome (898202898).

The spelling of 118200087 in words is "one hundred eighteen million, two hundred thousand, eighty-seven".