12889143 has 12 divisors (see below), whose sum is σ = 18649488. Its totient is φ = 8578080.

The previous prime is 12889133. The next prime is 12889147. The reversal of 12889143 is 34198821.

12889143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12889143 - 2¹⁴ = 12872759 is a prime.

It is a super-2 number, since 2×12889143² = 332260014548898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12889098 and 12889107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12889147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7963 + ... + 9443.

It is an arithmetic number, because the mean of its divisors is an integer number (1554124).

Almost surely, 2^12889143 is an apocalyptic number.

12889143 is a deficient number, since it is larger than the sum of its proper divisors (5760345).

12889143 is a wasteful number, since it uses less digits than its factorization.

12889143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2454 (or 2451 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 12889143 is about 3590.1452616851. The cubic root of 12889143 is about 234.4631960341.

The spelling of 12889143 in words is "twelve million, eight hundred eighty-nine thousand, one hundred forty-three".