118139085 has 12 divisors (see below), whose sum is σ = 204774492. Its totient is φ = 63007488.

The previous prime is 118139053. The next prime is 118139089. The reversal of 118139085 is 580931811.

It can be written as a sum of positive squares in 2 ways, for example, as 69655716 + 48483369 = 8346^2 + 6963^2 .

It is not a de Polignac number, because 118139085 - 2⁵ = 118139053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118139089) 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 11 ways as a sum of consecutive naturals, for example, 1312612 + ... + 1312701.

It is an arithmetic number, because the mean of its divisors is an integer number (17064541).

Almost surely, 2^118139085 is an apocalyptic number.

118139085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118139085 is a deficient number, since it is larger than the sum of its proper divisors (86635407).

118139085 is a wasteful number, since it uses less digits than its factorization.

118139085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625324 (or 2625321 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 118139085 is about 10869.1805118877. The cubic root of 118139085 is about 490.6794475390.

The spelling of 118139085 in words is "one hundred eighteen million, one hundred thirty-nine thousand, eighty-five".