12857193 has 12 divisors (see below), whose sum is σ = 18610228. Its totient is φ = 8553600.

The previous prime is 12857147. The next prime is 12857209. The reversal of 12857193 is 39175821.

12857193 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8139609 + 4717584 = 2853^2 + 2172^2 .

It is not a de Polignac number, because 12857193 - 2⁹ = 12856681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12857113) 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, 4221 + ... + 6597.

Almost surely, 2^12857193 is an apocalyptic number.

It is an amenable number.

12857193 is a deficient number, since it is larger than the sum of its proper divisors (5753035).

12857193 is a wasteful number, since it uses less digits than its factorization.

12857193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984 (or 2981 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 12857193 is about 3585.6928200837. The cubic root of 12857193 is about 234.2693042350.

The spelling of 12857193 in words is "twelve million, eight hundred fifty-seven thousand, one hundred ninety-three".