12851143 has 4 divisors (see below), whose sum is σ = 13265728. Its totient is φ = 12436560.

The previous prime is 12851141. The next prime is 12851161. The reversal of 12851143 is 34115821.

12851143 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34115821 = 17 ⋅2006813.

It is a cyclic number.

It is not a de Polignac number, because 12851143 - 2¹ = 12851141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12851141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207246 + ... + 207307.

It is an arithmetic number, because the mean of its divisors is an integer number (3316432).

Almost surely, 2^12851143 is an apocalyptic number.

12851143 is a deficient number, since it is larger than the sum of its proper divisors (414585).

12851143 is an equidigital number, since it uses as much as digits as its factorization.

12851143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414584.

The product of its digits is 960, while the sum is 25.

The square root of 12851143 is about 3584.8490902687. The cubic root of 12851143 is about 234.2325530391.

Adding to 12851143 its reverse (34115821), we get a palindrome (46966964).

The spelling of 12851143 in words is "twelve million, eight hundred fifty-one thousand, one hundred forty-three".