118066405 has 4 divisors (see below), whose sum is σ = 141679692. Its totient is φ = 94453120.

The previous prime is 118066393. The next prime is 118066471. The reversal of 118066405 is 504660811.

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 20629764 + 97436641 = 4542^2 + 9871^2 .

It is not a de Polignac number, because 118066405 - 2⁵ = 118066373 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 11806636 + ... + 11806645.

It is an arithmetic number, because the mean of its divisors is an integer number (35419923).

Almost surely, 2^118066405 is an apocalyptic number.

It is an amenable number.

118066405 is a deficient number, since it is larger than the sum of its proper divisors (23613287).

118066405 is an equidigital number, since it uses as much as digits as its factorization.

118066405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23613286.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 118066405 is about 10865.8365991763. The cubic root of 118066405 is about 490.5788037427.

The spelling of 118066405 in words is "one hundred eighteen million, sixty-six thousand, four hundred five".