264315215 has 4 divisors (see below), whose sum is σ = 317178264. Its totient is φ = 211452168.

The previous prime is 264315209. The next prime is 264315223. The reversal of 264315215 is 512513462.

264315215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 264315215 - 2¹⁰ = 264314191 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, 26431517 + ... + 26431526.

It is an arithmetic number, because the mean of its divisors is an integer number (79294566).

Almost surely, 2^264315215 is an apocalyptic number.

264315215 is a deficient number, since it is larger than the sum of its proper divisors (52863049).

264315215 is an equidigital number, since it uses as much as digits as its factorization.

264315215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52863048.

The product of its digits is 7200, while the sum is 29.

The square root of 264315215 is about 16257.7739866194. The cubic root of 264315215 is about 641.7620833726.

Adding to 264315215 its reverse (512513462), we get a palindrome (776828677).

The spelling of 264315215 in words is "two hundred sixty-four million, three hundred fifteen thousand, two hundred fifteen".