12885257 has 8 divisors (see below), whose sum is σ = 16064832. Its totient is φ = 10040400.

The previous prime is 12885253. The next prime is 12885263. The reversal of 12885257 is 75258821.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12885257 - 2² = 12885253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12885257.

It is not an unprimeable number, because it can be changed into a prime (12885253) 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, 83594 + ... + 83747.

It is an arithmetic number, because the mean of its divisors is an integer number (2008104).

Almost surely, 2^12885257 is an apocalyptic number.

It is an amenable number.

12885257 is a deficient number, since it is larger than the sum of its proper divisors (3179575).

12885257 is a wasteful number, since it uses less digits than its factorization.

12885257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167359.

The product of its digits is 44800, while the sum is 38.

The square root of 12885257 is about 3589.6040171584. The cubic root of 12885257 is about 234.4396305790.

The spelling of 12885257 in words is "twelve million, eight hundred eighty-five thousand, two hundred fifty-seven".