12545418 has 16 divisors (see below), whose sum is σ = 25564896. Its totient is φ = 4102800.

The previous prime is 12545417. The next prime is 12545447. The reversal of 12545418 is 81454521.

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

It is not an unprimeable number, because it can be changed into a prime (12545411) 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, 19408 + ... + 20043.

It is an arithmetic number, because the mean of its divisors is an integer number (1597806).

Almost surely, 2^12545418 is an apocalyptic number.

12545418 is an abundant number, since it is smaller than the sum of its proper divisors (13019478).

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

12545418 is a wasteful number, since it uses less digits than its factorization.

12545418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39509.

The product of its digits is 6400, while the sum is 30.

The square root of 12545418 is about 3541.9511572014. The cubic root of 12545418 is about 232.3601841765.

Adding to 12545418 its reverse (81454521), we get a palindrome (93999939).

The spelling of 12545418 in words is "twelve million, five hundred forty-five thousand, four hundred eighteen".