12648291 has 8 divisors (see below), whose sum is σ = 17182800. Its totient is φ = 8272992.

The previous prime is 12648283. The next prime is 12648299. The reversal of 12648291 is 19284621.

It is an interprime number because it is at equal distance from previous prime (12648283) and next prime (12648299).

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

It is not a de Polignac number, because 12648291 - 2³ = 12648283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12648299) 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, 39616 + ... + 39933.

It is an arithmetic number, because the mean of its divisors is an integer number (2147850).

Almost surely, 2^12648291 is an apocalyptic number.

12648291 is a deficient number, since it is larger than the sum of its proper divisors (4534509).

12648291 is an equidigital number, since it uses as much as digits as its factorization.

12648291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79605.

The product of its digits is 6912, while the sum is 33.

The square root of 12648291 is about 3556.4435887555. The cubic root of 12648291 is about 232.9935774047.

The spelling of 12648291 in words is "twelve million, six hundred forty-eight thousand, two hundred ninety-one".