12734147 has 4 divisors (see below), whose sum is σ = 12950040. Its totient is φ = 12518256.

The previous prime is 12734131. The next prime is 12734171. The reversal of 12734147 is 74143721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74143721 = 157 ⋅472253.

It is a cyclic number.

It is not a de Polignac number, because 12734147 - 2⁴ = 12734131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12734107) 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, 107858 + ... + 107975.

It is an arithmetic number, because the mean of its divisors is an integer number (3237510).

Almost surely, 2^12734147 is an apocalyptic number.

12734147 is a deficient number, since it is larger than the sum of its proper divisors (215893).

12734147 is an equidigital number, since it uses as much as digits as its factorization.

12734147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215892.

The product of its digits is 4704, while the sum is 29.

The square root of 12734147 is about 3568.4936597954. The cubic root of 12734147 is about 233.5195721725.

Adding to 12734147 its reverse (74143721), we get a palindrome (86877868).

The spelling of 12734147 in words is "twelve million, seven hundred thirty-four thousand, one hundred forty-seven".