264215 has 8 divisors (see below), whose sum is σ = 362400. Its totient is φ = 181152.

The previous prime is 264211. The next prime is 264221. The reversal of 264215 is 512462.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264215 - 2² = 264211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3740 + ... + 3809.

It is an arithmetic number, because the mean of its divisors is an integer number (45300).

2²⁶⁴²¹⁵ is an apocalyptic number.

264215 is a deficient number, since it is larger than the sum of its proper divisors (98185).

264215 is an equidigital number, since it uses as much as digits as its factorization.

264215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7561.

The product of its digits is 480, while the sum is 20.

The square root of 264215 is about 514.0184821580. The cubic root of 264215 is about 64.1680965181.

Adding to 264215 its reverse (512462), we get a palindrome (776677).

The spelling of 264215 in words is "two hundred sixty-four thousand, two hundred fifteen".