12143534545 has 8 divisors (see below), whose sum is σ = 14582461824. Its totient is φ = 9708014064.

The previous prime is 12143534483. The next prime is 12143534573. The reversal of 12143534545 is 54543534121.

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

It is a cyclic number.

It is not a de Polignac number, because 12143534545 - 2⁹ = 12143534033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 843849 + ... + 858118.

It is an arithmetic number, because the mean of its divisors is an integer number (1822807728).

Almost surely, 2^12143534545 is an apocalyptic number.

It is an amenable number.

12143534545 is a deficient number, since it is larger than the sum of its proper divisors (2438927279).

12143534545 is a wasteful number, since it uses less digits than its factorization.

12143534545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703399.

The product of its digits is 144000, while the sum is 37.

The spelling of 12143534545 in words is "twelve billion, one hundred forty-three million, five hundred thirty-four thousand, five hundred forty-five".