12791549 has 8 divisors (see below), whose sum is σ = 13237560. Its totient is φ = 12352000.

The previous prime is 12791543. The next prime is 12791563. The reversal of 12791549 is 94519721.

It can be written as a sum of positive squares in 4 ways, for example, as 4708900 + 8082649 = 2170^2 + 2843^2 .

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 12791549 - 2⁴ = 12791533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12791543) 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, 2597 + ... + 5685.

It is an arithmetic number, because the mean of its divisors is an integer number (1654695).

Almost surely, 2^12791549 is an apocalyptic number.

It is an amenable number.

12791549 is a deficient number, since it is larger than the sum of its proper divisors (446011).

12791549 is a wasteful number, since it uses less digits than its factorization.

12791549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231.

The product of its digits is 22680, while the sum is 38.

The square root of 12791549 is about 3576.5275058358. The cubic root of 12791549 is about 233.8699267357.

The spelling of 12791549 in words is "twelve million, seven hundred ninety-one thousand, five hundred forty-nine".