118380587 has 4 divisors (see below), whose sum is σ = 127486800. Its totient is φ = 109274376.

The previous prime is 118380553. The next prime is 118380589. The reversal of 118380587 is 785083811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 785083811 = 21163 ⋅37097.

It is a cyclic number.

It is not a de Polignac number, because 118380587 - 2⁸ = 118380331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118380589) 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, 4553087 + ... + 4553112.

It is an arithmetic number, because the mean of its divisors is an integer number (31871700).

Almost surely, 2^118380587 is an apocalyptic number.

118380587 is a deficient number, since it is larger than the sum of its proper divisors (9106213).

118380587 is an equidigital number, since it uses as much as digits as its factorization.

118380587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9106212.

The product of its (nonzero) digits is 53760, while the sum is 41.

The square root of 118380587 is about 10880.2843253290. The cubic root of 118380587 is about 491.0135718267.

The spelling of 118380587 in words is "one hundred eighteen million, three hundred eighty thousand, five hundred eighty-seven".