12743137 has 4 divisors (see below), whose sum is σ = 13901616. Its totient is φ = 11584660.

The previous prime is 12743131. The next prime is 12743141. The reversal of 12743137 is 73134721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12743137 - 2²³ = 4354529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12743131) 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, 579223 + ... + 579244.

It is an arithmetic number, because the mean of its divisors is an integer number (3475404).

Almost surely, 2^12743137 is an apocalyptic number.

It is an amenable number.

12743137 is a deficient number, since it is larger than the sum of its proper divisors (1158479).

12743137 is a wasteful number, since it uses less digits than its factorization.

12743137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158478.

The product of its digits is 3528, while the sum is 28.

The square root of 12743137 is about 3569.7530726928. The cubic root of 12743137 is about 233.5745123037.

Adding to 12743137 its reverse (73134721), we get a palindrome (85877858).

It can be divided in two parts, 12743 and 137, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 12743137 in words is "twelve million, seven hundred forty-three thousand, one hundred thirty-seven".