12734172 has 84 divisors (see below), whose sum is σ = 36541176. Its totient is φ = 3849120.

The previous prime is 12734171. The next prime is 12734233. The reversal of 12734172 is 27143721.

It is a happy number.

12734172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12734171) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 31878 + ... + 32274.

It is an arithmetic number, because the mean of its divisors is an integer number (435014).

Almost surely, 2^12734172 is an apocalyptic number.

12734172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12734172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18270588).

12734172 is an abundant number, since it is smaller than the sum of its proper divisors (23807004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12734172 is a wasteful number, since it uses less digits than its factorization.

12734172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 413 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 12734172 is about 3568.4971626723. The cubic root of 12734172 is about 233.5197249896.

Adding to 12734172 its reverse (27143721), we get a palindrome (39877893).

It can be divided in two parts, 1273 and 4172, that added together give a palindrome (5445).

The spelling of 12734172 in words is "twelve million, seven hundred thirty-four thousand, one hundred seventy-two".