12603061 has 4 divisors (see below), whose sum is σ = 13266400. Its totient is φ = 11939724.

The previous prime is 12603053. The next prime is 12603079. The reversal of 12603061 is 16030621.

12603061 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16030621 = 67 ⋅239263.

It is a cyclic number.

It is not a de Polignac number, because 12603061 - 2³ = 12603053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 663319 = 12603061 / (1 + 2 + 6 + 0 + 3 + 0 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12603091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331641 + ... + 331678.

It is an arithmetic number, because the mean of its divisors is an integer number (3316600).

Almost surely, 2^12603061 is an apocalyptic number.

It is an amenable number.

12603061 is a deficient number, since it is larger than the sum of its proper divisors (663339).

12603061 is an equidigital number, since it uses as much as digits as its factorization.

12603061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663338.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 12603061 is about 3550.0790132052. The cubic root of 12603061 is about 232.7155191254.

Adding to 12603061 its reverse (16030621), we get a palindrome (28633682).

It can be divided in two parts, 1 and 2603061, that added together give a palindrome (2603062).

The spelling of 12603061 in words is "twelve million, six hundred three thousand, sixty-one".