12603869 has 2 divisors, whose sum is σ = 12603870. Its totient is φ = 12603868.

The previous prime is 12603853. The next prime is 12603883. The reversal of 12603869 is 96830621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12602500 + 1369 = 3550^2 + 37^2 .

It is a cyclic number.

It is not a de Polignac number, because 12603869 - 2⁴ = 12603853 is a prime.

It is a super-2 number, since 2×12603869² = 317715027538322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12603809) 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 as a sum of consecutive naturals, namely, 6301934 + 6301935.

It is an arithmetic number, because the mean of its divisors is an integer number (6301935).

Almost surely, 2^12603869 is an apocalyptic number.

It is an amenable number.

12603869 is a deficient number, since it is larger than the sum of its proper divisors (1).

12603869 is an equidigital number, since it uses as much as digits as its factorization.

12603869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 12603869 is about 3550.1928116653. The cubic root of 12603869 is about 232.7204922591.

The spelling of 12603869 in words is "twelve million, six hundred three thousand, eight hundred sixty-nine".