118135159 has 4 divisors (see below), whose sum is σ = 125084304. Its totient is φ = 111186016.

The previous prime is 118135081. The next prime is 118135163. The reversal of 118135159 is 951531811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 951531811 = 2417 ⋅393683.

It is a cyclic number.

It is not a de Polignac number, because 118135159 - 2¹⁷ = 118004087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118135859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3474547 + ... + 3474580.

It is an arithmetic number, because the mean of its divisors is an integer number (31271076).

Almost surely, 2^118135159 is an apocalyptic number.

118135159 is a deficient number, since it is larger than the sum of its proper divisors (6949145).

118135159 is an equidigital number, since it uses as much as digits as its factorization.

118135159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6949144.

The product of its digits is 5400, while the sum is 34.

The square root of 118135159 is about 10868.9999079952. Note that the first 4 decimals coincide. The cubic root of 118135159 is about 490.6740120564.

The spelling of 118135159 in words is "one hundred eighteen million, one hundred thirty-five thousand, one hundred fifty-nine".