12243045147 has 4 divisors (see below), whose sum is σ = 16324060200. Its totient is φ = 8162030096.

The previous prime is 12243045121. The next prime is 12243045149. The reversal of 12243045147 is 74154034221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12243045147 - 2⁶ = 12243045083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12243045149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2040507522 + ... + 2040507527.

It is an arithmetic number, because the mean of its divisors is an integer number (4081015050).

Almost surely, 2^12243045147 is an apocalyptic number.

12243045147 is a deficient number, since it is larger than the sum of its proper divisors (4081015053).

12243045147 is an equidigital number, since it uses as much as digits as its factorization.

12243045147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4081015052.

The product of its (nonzero) digits is 26880, while the sum is 33.

Adding to 12243045147 its reverse (74154034221), we get a palindrome (86397079368).

The spelling of 12243045147 in words is "twelve billion, two hundred forty-three million, forty-five thousand, one hundred forty-seven".