12561298 has 8 divisors (see below), whose sum is σ = 18865980. Its totient is φ = 6272640.

The previous prime is 12561287. The next prime is 12561301. The reversal of 12561298 is 89216521.

It can be written as a sum of positive squares in 2 ways, for example, as 12411529 + 149769 = 3523^2 + 387^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1803 + ... + 5326.

Almost surely, 2^12561298 is an apocalyptic number.

12561298 is a deficient number, since it is larger than the sum of its proper divisors (6304682).

12561298 is an equidigital number, since it uses as much as digits as its factorization.

12561298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8012.

The product of its digits is 8640, while the sum is 34.

The square root of 12561298 is about 3544.1921505471. The cubic root of 12561298 is about 232.4581834071.

The spelling of 12561298 in words is "twelve million, five hundred sixty-one thousand, two hundred ninety-eight".