12546978 has 16 divisors (see below), whose sum is σ = 25448256. Its totient is φ = 4123280.

The previous prime is 12546977. The next prime is 12546991. The reversal of 12546978 is 87964521.

It is not an unprimeable number, because it can be changed into a prime (12546977) 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, 14301 + ... + 15152.

It is an arithmetic number, because the mean of its divisors is an integer number (1590516).

Almost surely, 2^12546978 is an apocalyptic number.

12546978 is an abundant number, since it is smaller than the sum of its proper divisors (12901278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12546978 is a wasteful number, since it uses less digits than its factorization.

12546978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29529.

The product of its digits is 120960, while the sum is 42.

The square root of 12546978 is about 3542.1713679606. The cubic root of 12546978 is about 232.3698149667.

The spelling of 12546978 in words is "twelve million, five hundred forty-six thousand, nine hundred seventy-eight".