12245215 has 16 divisors (see below), whose sum is σ = 15585120. Its totient is φ = 9210240.

The previous prime is 12245209. The next prime is 12245249. The reversal of 12245215 is 51254221.

It is not a de Polignac number, because 12245215 - 2⁹ = 12244703 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14505 + ... + 15325.

It is an arithmetic number, because the mean of its divisors is an integer number (974070).

Almost surely, 2^12245215 is an apocalyptic number.

12245215 is a deficient number, since it is larger than the sum of its proper divisors (3339905).

12245215 is a wasteful number, since it uses less digits than its factorization.

12245215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002.

The product of its digits is 800, while the sum is 22.

The square root of 12245215 is about 3499.3163618055. The cubic root of 12245215 is about 230.4917958128.

Adding to 12245215 its reverse (51254221), we get a palindrome (63499436).

The spelling of 12245215 in words is "twelve million, two hundred forty-five thousand, two hundred fifteen".