12420653 has 8 divisors (see below), whose sum is σ = 14268672. Its totient is φ = 10591056.

The previous prime is 12420649. The next prime is 12420673. The reversal of 12420653 is 35602421.

12420653 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12420653 - 2² = 12420649 is a prime.

It is a super-3 number, since 3×12420653³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3125 + ... + 5882.

It is an arithmetic number, because the mean of its divisors is an integer number (1783584).

Almost surely, 2^12420653 is an apocalyptic number.

It is an amenable number.

12420653 is a deficient number, since it is larger than the sum of its proper divisors (1848019).

12420653 is an equidigital number, since it uses as much as digits as its factorization.

12420653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9211.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 12420653 is about 3524.2946812093. The cubic root of 12420653 is about 231.5873374217.

The spelling of 12420653 in words is "twelve million, four hundred twenty thousand, six hundred fifty-three".