118115089 has 4 divisors (see below), whose sum is σ = 120628224. Its totient is φ = 115601956.

The previous prime is 118115083. The next prime is 118115113. The reversal of 118115089 is 980511811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 118115089 - 2¹³ = 118106897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118115083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256497 + ... + 1256590.

It is an arithmetic number, because the mean of its divisors is an integer number (30157056).

Almost surely, 2^118115089 is an apocalyptic number.

It is an amenable number.

118115089 is a deficient number, since it is larger than the sum of its proper divisors (2513135).

118115089 is an equidigital number, since it uses as much as digits as its factorization.

118115089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513134.

The product of its (nonzero) digits is 2880, while the sum is 34.

The square root of 118115089 is about 10868.0766007606. The cubic root of 118115089 is about 490.6462235886.

It can be divided in two parts, 11811 and 5089, that added together give a square (16900 = 130²).

The spelling of 118115089 in words is "one hundred eighteen million, one hundred fifteen thousand, eighty-nine".