12545318 has 4 divisors (see below), whose sum is σ = 18817980. Its totient is φ = 6272658.

The previous prime is 12545261. The next prime is 12545333. The reversal of 12545318 is 81354521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81354521 = 3919 ⋅20759.

It is a super-3 number, since 3×12545318³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3136328 + ... + 3136331.

It is an arithmetic number, because the mean of its divisors is an integer number (4704495).

Almost surely, 2^12545318 is an apocalyptic number.

12545318 is a deficient number, since it is larger than the sum of its proper divisors (6272662).

12545318 is an equidigital number, since it uses as much as digits as its factorization.

12545318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6272661.

The product of its digits is 4800, while the sum is 29.

The square root of 12545318 is about 3541.9370406601. The cubic root of 12545318 is about 232.3595667910.

Adding to 12545318 its reverse (81354521), we get a palindrome (93899839).

The spelling of 12545318 in words is "twelve million, five hundred forty-five thousand, three hundred eighteen".