12325278 has 16 divisors (see below), whose sum is σ = 28172160. Its totient is φ = 3521496.

The previous prime is 12325267. The next prime is 12325279. The reversal of 12325278 is 87252321.

12325278 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12325279) 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, 146688 + ... + 146771.

It is an arithmetic number, because the mean of its divisors is an integer number (1760760).

Almost surely, 2^12325278 is an apocalyptic number.

12325278 is an abundant number, since it is smaller than the sum of its proper divisors (15846882).

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

12325278 is a wasteful number, since it uses less digits than its factorization.

12325278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293471.

The product of its digits is 6720, while the sum is 30.

The square root of 12325278 is about 3510.7375293519. The cubic root of 12325278 is about 230.9930471474.

Adding to 12325278 its reverse (87252321), we get a palindrome (99577599).

The spelling of 12325278 in words is "twelve million, three hundred twenty-five thousand, two hundred seventy-eight".