12857273 has 16 divisors (see below), whose sum is σ = 15434496. Its totient is φ = 10554240.

The previous prime is 12857267. The next prime is 12857279. The reversal of 12857273 is 37275821.

It is an interprime number because it is at equal distance from previous prime (12857267) and next prime (12857279).

It is a cyclic number.

It is not a de Polignac number, because 12857273 - 2⁶ = 12857209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12857279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5765 + ... + 7677.

It is an arithmetic number, because the mean of its divisors is an integer number (964656).

Almost surely, 2^12857273 is an apocalyptic number.

12857273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12857273 is a deficient number, since it is larger than the sum of its proper divisors (2577223).

12857273 is a wasteful number, since it uses less digits than its factorization.

12857273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984.

The product of its digits is 23520, while the sum is 35.

The square root of 12857273 is about 3585.7039755116. The cubic root of 12857273 is about 234.2697901240.

It can be divided in two parts, 1285 and 7273, that added together give a palindrome (8558).

The spelling of 12857273 in words is "twelve million, eight hundred fifty-seven thousand, two hundred seventy-three".