12748269 has 4 divisors (see below), whose sum is σ = 16997696. Its totient is φ = 8498844.

The previous prime is 12748247. The next prime is 12748277. The reversal of 12748269 is 96284721.

12748269 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 12748269 - 2⁸ = 12748013 is a prime.

It is a super-2 number, since 2×12748269² = 325036724992722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12748289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2124709 + ... + 2124714.

It is an arithmetic number, because the mean of its divisors is an integer number (4249424).

Almost surely, 2^12748269 is an apocalyptic number.

It is an amenable number.

12748269 is a deficient number, since it is larger than the sum of its proper divisors (4249427).

12748269 is an equidigital number, since it uses as much as digits as its factorization.

12748269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249426.

The product of its digits is 48384, while the sum is 39.

The square root of 12748269 is about 3570.4718175614. The cubic root of 12748269 is about 233.6058636504.

The spelling of 12748269 in words is "twelve million, seven hundred forty-eight thousand, two hundred sixty-nine".