229185645 has 32 divisors (see below), whose sum is σ = 396423552. Its totient is φ = 112396032.

The previous prime is 229185643. The next prime is 229185647. The reversal of 229185645 is 546581922.

229185645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (229185643) and next prime (229185647).

It is not a de Polignac number, because 229185645 - 2¹ = 229185643 is a prime.

It is a super-3 number, since 3×229185645³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 229185597 and 229185606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229185643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51894 + ... + 56136.

It is an arithmetic number, because the mean of its divisors is an integer number (12388236).

Almost surely, 2^229185645 is an apocalyptic number.

It is an amenable number.

229185645 is a deficient number, since it is larger than the sum of its proper divisors (167237907).

229185645 is a wasteful number, since it uses less digits than its factorization.

229185645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541.

The product of its digits is 172800, while the sum is 42.

The square root of 229185645 is about 15138.8785912299. The cubic root of 229185645 is about 611.9685975386.

The spelling of 229185645 in words is "two hundred twenty-nine million, one hundred eighty-five thousand, six hundred forty-five".