264305 has 4 divisors (see below), whose sum is σ = 317172. Its totient is φ = 211440.

The previous prime is 264301. The next prime is 264323. The reversal of 264305 is 503462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 135424 + 128881 = 368^2 + 359^2 .

It is not a de Polignac number, because 264305 - 2² = 264301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (264301) 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, 26426 + ... + 26435.

It is an arithmetic number, because the mean of its divisors is an integer number (79293).

2²⁶⁴³⁰⁵ is an apocalyptic number.

It is an amenable number.

264305 is a deficient number, since it is larger than the sum of its proper divisors (52867).

264305 is an equidigital number, since it uses as much as digits as its factorization.

264305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52866.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 264305 is about 514.1060201943. The cubic root of 264305 is about 64.1753815865.

Adding to 264305 its reverse (503462), we get a palindrome (767767).

The spelling of 264305 in words is "two hundred sixty-four thousand, three hundred five".