118339777 has 4 divisors (see below), whose sum is σ = 118424020. Its totient is φ = 118255536.

The previous prime is 118339769. The next prime is 118339783. The reversal of 118339777 is 777933811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 777933811 = 26893 ⋅28927.

It can be written as a sum of positive squares in 2 ways, for example, as 42458256 + 75881521 = 6516^2 + 8711^2 .

It is a cyclic number.

It is not a de Polignac number, because 118339777 - 2³ = 118339769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118339717) 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 3 ways as a sum of consecutive naturals, for example, 39978 + ... + 42835.

It is an arithmetic number, because the mean of its divisors is an integer number (29606005).

Almost surely, 2^118339777 is an apocalyptic number.

It is an amenable number.

118339777 is a deficient number, since it is larger than the sum of its proper divisors (84243).

118339777 is an equidigital number, since it uses as much as digits as its factorization.

118339777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84242.

The product of its digits is 222264, while the sum is 46.

The square root of 118339777 is about 10878.4087531219. The cubic root of 118339777 is about 490.9571420594.

The spelling of 118339777 in words is "one hundred eighteen million, three hundred thirty-nine thousand, seven hundred seventy-seven".