118082387 has 4 divisors (see below), whose sum is σ = 118124616. Its totient is φ = 118040160.

The previous prime is 118082353. The next prime is 118082389. The reversal of 118082387 is 783280811.

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 118082387 - 2²⁰ = 117033811 is a prime.

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 118082387.

It is not an unprimeable number, because it can be changed into a prime (118082389) 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, 16598 + ... + 22619.

It is an arithmetic number, because the mean of its divisors is an integer number (29531154).

Almost surely, 2^118082387 is an apocalyptic number.

118082387 is a deficient number, since it is larger than the sum of its proper divisors (42229).

118082387 is an equidigital number, since it uses as much as digits as its factorization.

118082387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42228.

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 118082387 is about 10866.5719985651. The cubic root of 118082387 is about 490.6009383956.

The spelling of 118082387 in words is "one hundred eighteen million, eighty-two thousand, three hundred eighty-seven".