12545216 has 28 divisors (see below), whose sum is σ = 25039320. Its totient is φ = 6236160.

The previous prime is 12545209. The next prime is 12545219. The reversal of 12545216 is 61254521.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

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 (12545219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13040 + ... + 13968.

Almost surely, 2^12545216 is an apocalyptic number.

12545216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12545216 is a deficient number, since it is larger than the sum of its proper divisors (12494104).

12545216 is an equidigital number, since it uses as much as digits as its factorization.

12545216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152 (or 1142 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 12545216 is about 3541.9226417301. The cubic root of 12545216 is about 232.3589370543.

Adding to 12545216 its reverse (61254521), we get a palindrome (73799737).

The spelling of 12545216 in words is "twelve million, five hundred forty-five thousand, two hundred sixteen".