12456534143 has 8 divisors (see below), whose sum is σ = 13044386016. Its totient is φ = 11872537600.

The previous prime is 12456534089. The next prime is 12456534179. The reversal of 12456534143 is 34143565421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12456534143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12456534097 and 12456534106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12456534043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957218 + ... + 970143.

It is an arithmetic number, because the mean of its divisors is an integer number (1630548252).

Almost surely, 2^12456534143 is an apocalyptic number.

12456534143 is a deficient number, since it is larger than the sum of its proper divisors (587851873).

12456534143 is a wasteful number, since it uses less digits than its factorization.

12456534143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927665.

The product of its digits is 172800, while the sum is 38.

The spelling of 12456534143 in words is "twelve billion, four hundred fifty-six million, five hundred thirty-four thousand, one hundred forty-three".