12578 has 8 divisors (see below), whose sum is σ = 19920. Its totient is φ = 5940.

The previous prime is 12577. The next prime is 12583. The reversal of 12578 is 87521.

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

It is an Ulam number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128 + ... + 203.

It is an arithmetic number, because the mean of its divisors is an integer number (2490).

2¹²⁵⁷⁸ is an apocalyptic number.

12578 is a deficient number, since it is larger than the sum of its proper divisors (7342).

12578 is a wasteful number, since it uses less digits than its factorization.

12578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352.

The product of its digits is 560, while the sum is 23.

The square root of 12578 is about 112.1516830012. The cubic root of 12578 is about 23.2561166317.

The spelling of 12578 in words is "twelve thousand, five hundred seventy-eight".