118022165 has 4 divisors (see below), whose sum is σ = 141626604. Its totient is φ = 94417728.

The previous prime is 118022153. The next prime is 118022171. The reversal of 118022165 is 561220811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561220811 = 4337 ⋅129403.

It can be written as a sum of positive squares in 2 ways, for example, as 83046769 + 34975396 = 9113^2 + 5914^2 .

It is a cyclic number.

It is not a de Polignac number, because 118022165 - 2⁶ = 118022101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11802212 + ... + 11802221.

It is an arithmetic number, because the mean of its divisors is an integer number (35406651).

Almost surely, 2^118022165 is an apocalyptic number.

It is an amenable number.

118022165 is a deficient number, since it is larger than the sum of its proper divisors (23604439).

118022165 is an equidigital number, since it uses as much as digits as its factorization.

118022165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23604438.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 118022165 is about 10863.8006701154. The cubic root of 118022165 is about 490.5175220778.

Adding to 118022165 its reverse (561220811), we get a palindrome (679242976).

The spelling of 118022165 in words is "one hundred eighteen million, twenty-two thousand, one hundred sixty-five".