12735559 has 2 divisors, whose sum is σ = 12735560. Its totient is φ = 12735558.

The previous prime is 12735551. The next prime is 12735571. The reversal of 12735559 is 95553721.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12735559 - 2³ = 12735551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12735551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6367779 + 6367780.

It is an arithmetic number, because the mean of its divisors is an integer number (6367780).

Almost surely, 2^12735559 is an apocalyptic number.

12735559 is a deficient number, since it is larger than the sum of its proper divisors (1).

12735559 is an equidigital number, since it uses as much as digits as its factorization.

12735559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47250, while the sum is 37.

The square root of 12735559 is about 3568.6914968935. The cubic root of 12735559 is about 233.5282029679.

The spelling of 12735559 in words is "twelve million, seven hundred thirty-five thousand, five hundred fifty-nine".