12738291 has 8 divisors (see below), whose sum is σ = 17005824. Its totient is φ = 8481480.

The previous prime is 12738289. The next prime is 12738293. The reversal of 12738291 is 19283721.

It is an interprime number because it is at equal distance from previous prime (12738289) and next prime (12738293).

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

It is not a de Polignac number, because 12738291 - 2¹ = 12738289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12738293) 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, 706 + ... + 5096.

It is an arithmetic number, because the mean of its divisors is an integer number (2125728).

Almost surely, 2^12738291 is an apocalyptic number.

12738291 is a deficient number, since it is larger than the sum of its proper divisors (4267533).

12738291 is an equidigital number, since it uses as much as digits as its factorization.

12738291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361.

The product of its digits is 6048, while the sum is 33.

The square root of 12738291 is about 3569.0742497180. The cubic root of 12738291 is about 233.5449004010.

The spelling of 12738291 in words is "twelve million, seven hundred thirty-eight thousand, two hundred ninety-one".