12420265 has 32 divisors (see below), whose sum is σ = 18144000. Its totient is φ = 8037120.

The previous prime is 12420263. The next prime is 12420269. The reversal of 12420265 is 56202421.

12420265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12420265 - 2¹ = 12420263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12420263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20436 + ... + 21034.

It is an arithmetic number, because the mean of its divisors is an integer number (567000).

Almost surely, 2^12420265 is an apocalyptic number.

It is an amenable number.

12420265 is a deficient number, since it is larger than the sum of its proper divisors (5723735).

12420265 is a wasteful number, since it uses less digits than its factorization.

12420265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 12420265 is about 3524.2396343041. The cubic root of 12420265 is about 231.5849259322.

Adding to 12420265 its reverse (56202421), we get a palindrome (68622686).

The spelling of 12420265 in words is "twelve million, four hundred twenty thousand, two hundred sixty-five".