12293645 has 32 divisors (see below), whose sum is σ = 18627840. Its totient is φ = 7580160.

The previous prime is 12293641. The next prime is 12293663. The reversal of 12293645 is 54639221.

It is a happy number.

12293645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12293645 - 2² = 12293641 is a prime.

It is a super-3 number, since 3×12293645³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12293641) 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 31 ways as a sum of consecutive naturals, for example, 18326 + ... + 18984.

It is an arithmetic number, because the mean of its divisors is an integer number (582120).

Almost surely, 2^12293645 is an apocalyptic number.

It is an amenable number.

12293645 is a deficient number, since it is larger than the sum of its proper divisors (6334195).

12293645 is a wasteful number, since it uses less digits than its factorization.

12293645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725.

The product of its digits is 12960, while the sum is 32.

The square root of 12293645 is about 3506.2294562678. The cubic root of 12293645 is about 230.7952622059.

The spelling of 12293645 in words is "twelve million, two hundred ninety-three thousand, six hundred forty-five".