118204487 has 4 divisors (see below), whose sum is σ = 118631496. Its totient is φ = 117777480.

The previous prime is 118204481. The next prime is 118204501. The reversal of 118204487 is 784402811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784402811 = 191 ⋅4106821.

It is a cyclic number.

It is not a de Polignac number, because 118204487 - 2⁸ = 118204231 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 (118204481) 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 3 ways as a sum of consecutive naturals, for example, 213089 + ... + 213642.

It is an arithmetic number, because the mean of its divisors is an integer number (29657874).

Almost surely, 2^118204487 is an apocalyptic number.

118204487 is a deficient number, since it is larger than the sum of its proper divisors (427009).

118204487 is an equidigital number, since it uses as much as digits as its factorization.

118204487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427008.

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 118204487 is about 10872.1886940947. The cubic root of 118204487 is about 490.7699778296.

The spelling of 118204487 in words is "one hundred eighteen million, two hundred four thousand, four hundred eighty-seven".