12861357 has 8 divisors (see below), whose sum is σ = 17174976. Its totient is φ = 8560992.

The previous prime is 12861349. The next prime is 12861361. The reversal of 12861357 is 75316821.

12861357 is digitally balanced in base 3, because in such base 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 12861357 - 2³ = 12861349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12861337) 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, 768 + ... + 5129.

It is an arithmetic number, because the mean of its divisors is an integer number (2146872).

Almost surely, 2^12861357 is an apocalyptic number.

It is an amenable number.

12861357 is a deficient number, since it is larger than the sum of its proper divisors (4313619).

12861357 is an equidigital number, since it uses as much as digits as its factorization.

12861357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6627.

The product of its digits is 10080, while the sum is 33.

The square root of 12861357 is about 3586.2734140051. The cubic root of 12861357 is about 234.2945920795.

The spelling of 12861357 in words is "twelve million, eight hundred sixty-one thousand, three hundred fifty-seven".