12481559 has 2 divisors, whose sum is σ = 12481560. Its totient is φ = 12481558.

The previous prime is 12481541. The next prime is 12481619. The reversal of 12481559 is 95518421.

It is a weak prime.

It is an emirp because it is prime and its reverse (95518421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12481559 - 2¹⁶ = 12416023 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12481529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6240779 + 6240780.

It is an arithmetic number, because the mean of its divisors is an integer number (6240780).

Almost surely, 2^12481559 is an apocalyptic number.

12481559 is a deficient number, since it is larger than the sum of its proper divisors (1).

12481559 is an equidigital number, since it uses as much as digits as its factorization.

12481559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 35.

The square root of 12481559 is about 3532.9249921276. The cubic root of 12481559 is about 231.9652581251.

The spelling of 12481559 in words is "twelve million, four hundred eighty-one thousand, five hundred fifty-nine".