12732249 has 4 divisors (see below), whose sum is σ = 16976336. Its totient is φ = 8488164.

The previous prime is 12732241. The next prime is 12732277. The reversal of 12732249 is 94223721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12732249 - 2³ = 12732241 is a prime.

It is a super-2 number, since 2×12732249² = 324220329196002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12732241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2122039 + ... + 2122044.

It is an arithmetic number, because the mean of its divisors is an integer number (4244084).

Almost surely, 2^12732249 is an apocalyptic number.

It is an amenable number.

12732249 is a deficient number, since it is larger than the sum of its proper divisors (4244087).

12732249 is an equidigital number, since it uses as much as digits as its factorization.

12732249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244086.

The product of its digits is 6048, while the sum is 30.

The square root of 12732249 is about 3568.2277113435. The cubic root of 12732249 is about 233.5079697158.

The spelling of 12732249 in words is "twelve million, seven hundred thirty-two thousand, two hundred forty-nine".