12791559 has 8 divisors (see below), whose sum is σ = 18605952. Its totient is φ = 7752440.

The previous prime is 12791543. The next prime is 12791563. The reversal of 12791559 is 95519721.

12791559 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12791559 - 2⁴ = 12791543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12791539) 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, 193779 + ... + 193844.

It is an arithmetic number, because the mean of its divisors is an integer number (2325744).

Almost surely, 2^12791559 is an apocalyptic number.

12791559 is a deficient number, since it is larger than the sum of its proper divisors (5814393).

12791559 is a wasteful number, since it uses less digits than its factorization.

12791559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387637.

The product of its digits is 28350, while the sum is 39.

The square root of 12791559 is about 3576.5289038396. The cubic root of 12791559 is about 233.8699876796.

The spelling of 12791559 in words is "twelve million, seven hundred ninety-one thousand, five hundred fifty-nine".