229370165 has 4 divisors (see below), whose sum is σ = 275244204. Its totient is φ = 183496128.

The previous prime is 229370131. The next prime is 229370189. The reversal of 229370165 is 561073922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561073922 = 2 ⋅280536961.

It can be written as a sum of positive squares in 2 ways, for example, as 117137329 + 112232836 = 10823^2 + 10594^2 .

It is a cyclic number.

It is not a de Polignac number, because 229370165 - 2⁸ = 229369909 is a prime.

It is a super-2 number, since 2×229370165² = 105221345184254450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22937012 + ... + 22937021.

It is an arithmetic number, because the mean of its divisors is an integer number (68811051).

Almost surely, 2^229370165 is an apocalyptic number.

It is an amenable number.

229370165 is a deficient number, since it is larger than the sum of its proper divisors (45874039).

229370165 is an equidigital number, since it uses as much as digits as its factorization.

229370165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45874038.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 229370165 is about 15144.9716077647. The cubic root of 229370165 is about 612.1327878026.

The spelling of 229370165 in words is "two hundred twenty-nine million, three hundred seventy thousand, one hundred sixty-five".