12541603 has 2 divisors, whose sum is σ = 12541604. Its totient is φ = 12541602.

The previous prime is 12541579. The next prime is 12541637. The reversal of 12541603 is 30614521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12541603 - 2⁹ = 12541091 is a prime.

It is not a weakly prime, because it can be changed into another prime (12541673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6270801 + 6270802.

It is an arithmetic number, because the mean of its divisors is an integer number (6270802).

Almost surely, 2^12541603 is an apocalyptic number.

12541603 is a deficient number, since it is larger than the sum of its proper divisors (1).

12541603 is an equidigital number, since it uses as much as digits as its factorization.

12541603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12541603 is about 3541.4125712772. The cubic root of 12541603 is about 232.3366285917.

The spelling of 12541603 in words is "twelve million, five hundred forty-one thousand, six hundred three".