12746137 has 4 divisors (see below), whose sum is σ = 12764260. Its totient is φ = 12728016.

The previous prime is 12746119. The next prime is 12746143. The reversal of 12746137 is 73164721.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10830681 + 1915456 = 3291^2 + 1384^2 .

It is a cyclic number.

It is not a de Polignac number, because 12746137 - 2¹¹ = 12744089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12746099 and 12746108.

It is not an unprimeable number, because it can be changed into a prime (12746197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7962 + ... + 9427.

It is an arithmetic number, because the mean of its divisors is an integer number (3191065).

Almost surely, 2^12746137 is an apocalyptic number.

It is an amenable number.

12746137 is a deficient number, since it is larger than the sum of its proper divisors (18123).

12746137 is an equidigital number, since it uses as much as digits as its factorization.

12746137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18122.

The product of its digits is 7056, while the sum is 31.

The square root of 12746137 is about 3570.1732450961. The cubic root of 12746137 is about 233.5928403014.

It can be divided in two parts, 127 and 46137, that added together give a palindrome (46264).

The spelling of 12746137 in words is "twelve million, seven hundred forty-six thousand, one hundred thirty-seven".