12734161 has 24 divisors (see below), whose sum is σ = 15321600. Its totient is φ = 10533600.

The previous prime is 12734131. The next prime is 12734171. The reversal of 12734161 is 16143721.

It is not a de Polignac number, because 12734161 - 2⁵ = 12734129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12734131) 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 23 ways as a sum of consecutive naturals, for example, 66576 + ... + 66766.

It is an arithmetic number, because the mean of its divisors is an integer number (638400).

Almost surely, 2^12734161 is an apocalyptic number.

12734161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12734161 is a deficient number, since it is larger than the sum of its proper divisors (2587439).

12734161 is a wasteful number, since it uses less digits than its factorization.

12734161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 250 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 12734161 is about 3568.4956214069. The cubic root of 12734161 is about 233.5196577501.

Adding to 12734161 its reverse (16143721), we get a palindrome (28877882).

The spelling of 12734161 in words is "twelve million, seven hundred thirty-four thousand, one hundred sixty-one".