12481603 has 4 divisors (see below), whose sum is σ = 12489120. Its totient is φ = 12474088.

The previous prime is 12481559. The next prime is 12481619. The reversal of 12481603 is 30618421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12481603 - 2¹³ = 12473411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12481633) 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, 43 + ... + 4996.

It is an arithmetic number, because the mean of its divisors is an integer number (3122280).

Almost surely, 2^12481603 is an apocalyptic number.

12481603 is a deficient number, since it is larger than the sum of its proper divisors (7517).

12481603 is an equidigital number, since it uses as much as digits as its factorization.

12481603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7516.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 12481603 is about 3532.9312192569. The cubic root of 12481603 is about 231.9655306994.

The spelling of 12481603 in words is "twelve million, four hundred eighty-one thousand, six hundred three".