12740559 has 8 divisors (see below), whose sum is σ = 18294192. Its totient is φ = 7840320.

The previous prime is 12740549. The next prime is 12740573. The reversal of 12740559 is 95504721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12740559 - 2⁸ = 12740303 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12740549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163302 + ... + 163379.

It is an arithmetic number, because the mean of its divisors is an integer number (2286774).

Almost surely, 2^12740559 is an apocalyptic number.

12740559 is a deficient number, since it is larger than the sum of its proper divisors (5553633).

12740559 is a wasteful number, since it uses less digits than its factorization.

12740559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326697.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 12740559 is about 3569.3919650271. The cubic root of 12740559 is about 233.5587601462.

The spelling of 12740559 in words is "twelve million, seven hundred forty thousand, five hundred fifty-nine".