12860057 has 4 divisors (see below), whose sum is σ = 14697216. Its totient is φ = 11022900.

The previous prime is 12860051. The next prime is 12860069. The reversal of 12860057 is 75006821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-12860057 is a prime.

It is a pancake number, because a pancake can be divided into 12860057 parts by 5071 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12860051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918569 + ... + 918582.

It is an arithmetic number, because the mean of its divisors is an integer number (3674304).

Almost surely, 2^12860057 is an apocalyptic number.

It is an amenable number.

12860057 is a deficient number, since it is larger than the sum of its proper divisors (1837159).

12860057 is an equidigital number, since it uses as much as digits as its factorization.

12860057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837158.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 12860057 is about 3586.0921627867. The cubic root of 12860057 is about 234.2866978054.

Adding to 12860057 its reverse (75006821), we get a palindrome (87866878).

The spelling of 12860057 in words is "twelve million, eight hundred sixty thousand, fifty-seven".