12857241 has 8 divisors (see below), whose sum is σ = 17606464. Its totient is φ = 8339760.

The previous prime is 12857239. The next prime is 12857267. The reversal of 12857241 is 14275821.

12857241 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12857241 - 2¹ = 12857239 is a prime.

It is a super-2 number, since 2×12857241² = 330617292264162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12857199 and 12857208.

It is not an unprimeable number, because it can be changed into a prime (12857941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57805 + ... + 58026.

It is an arithmetic number, because the mean of its divisors is an integer number (2200808).

Almost surely, 2^12857241 is an apocalyptic number.

It is an amenable number.

12857241 is a deficient number, since it is larger than the sum of its proper divisors (4749223).

12857241 is a wasteful number, since it uses less digits than its factorization.

12857241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115871.

The product of its digits is 4480, while the sum is 30.

The square root of 12857241 is about 3585.6995133446. The cubic root of 12857241 is about 234.2695957687.

The spelling of 12857241 in words is "twelve million, eight hundred fifty-seven thousand, two hundred forty-one".