229465 has 4 divisors (see below), whose sum is σ = 275364. Its totient is φ = 183568.

The previous prime is 229459. The next prime is 229469. The reversal of 229465 is 564922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 564922 = 2 ⋅282461.

It can be written as a sum of positive squares in 2 ways, for example, as 63001 + 166464 = 251^2 + 408^2 .

It is a cyclic number.

It is not a de Polignac number, because 229465 - 2⁵ = 229433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22942 + ... + 22951.

It is an arithmetic number, because the mean of its divisors is an integer number (68841).

2²²⁹⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

229465 is a deficient number, since it is larger than the sum of its proper divisors (45899).

229465 is an equidigital number, since it uses as much as digits as its factorization.

229465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45898.

The product of its digits is 4320, while the sum is 28.

The square root of 229465 is about 479.0250515370. The cubic root of 229465 is about 61.2217139974.

The spelling of 229465 in words is "two hundred twenty-nine thousand, four hundred sixty-five".