118038665 has 4 divisors (see below), whose sum is σ = 141646404. Its totient is φ = 94430928.

The previous prime is 118038647. The next prime is 118038677. The reversal of 118038665 is 566830811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92717641 + 25321024 = 9629^2 + 5032^2 .

It is a cyclic number.

It is not a de Polignac number, because 118038665 - 2²⁴ = 101261449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11803862 + ... + 11803871.

It is an arithmetic number, because the mean of its divisors is an integer number (35411601).

Almost surely, 2^118038665 is an apocalyptic number.

It is an amenable number.

118038665 is a deficient number, since it is larger than the sum of its proper divisors (23607739).

118038665 is an equidigital number, since it uses as much as digits as its factorization.

118038665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23607738.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 118038665 is about 10864.5600463157. The cubic root of 118038665 is about 490.5403798237.

The spelling of 118038665 in words is "one hundred eighteen million, thirty-eight thousand, six hundred sixty-five".