118906065 has 12 divisors (see below), whose sum is σ = 206103924. Its totient is φ = 63416544.

The previous prime is 118906057. The next prime is 118906079. The reversal of 118906065 is 560609811.

It can be written as a sum of positive squares in 2 ways, for example, as 16329681 + 102576384 = 4041^2 + 10128^2 .

It is not a de Polignac number, because 118906065 - 2³ = 118906057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1321134 + ... + 1321223.

It is an arithmetic number, because the mean of its divisors is an integer number (17175327).

Almost surely, 2^118906065 is an apocalyptic number.

118906065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118906065 is a deficient number, since it is larger than the sum of its proper divisors (87197859).

118906065 is a wasteful number, since it uses less digits than its factorization.

118906065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642368 (or 2642365 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 118906065 is about 10904.4057609757. The cubic root of 118906065 is about 491.7390173460.

Adding to 118906065 its product of nonzero digits (12960), we get a square (118919025 = 10905²).

It can be divided in two parts, 11890 and 6065, that added together give a triangular number (17955 = T₁₈₉).

The spelling of 118906065 in words is "one hundred eighteen million, nine hundred six thousand, sixty-five".