12734123 has 4 divisors (see below), whose sum is σ = 13404360. Its totient is φ = 12063888.

The previous prime is 12734119. The next prime is 12734129. The reversal of 12734123 is 32143721.

12734123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12734123 - 2² = 12734119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12734129) 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, 335090 + ... + 335127.

It is an arithmetic number, because the mean of its divisors is an integer number (3351090).

Almost surely, 2^12734123 is an apocalyptic number.

12734123 is a deficient number, since it is larger than the sum of its proper divisors (670237).

12734123 is an equidigital number, since it uses as much as digits as its factorization.

12734123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670236.

The product of its digits is 1008, while the sum is 23.

The square root of 12734123 is about 3568.4902970304. The cubic root of 12734123 is about 233.5194254680.

Adding to 12734123 its reverse (32143721), we get a palindrome (44877844).

The spelling of 12734123 in words is "twelve million, seven hundred thirty-four thousand, one hundred twenty-three".