12743135 has 4 divisors (see below), whose sum is σ = 15291768. Its totient is φ = 10194504.

The previous prime is 12743131. The next prime is 12743141. The reversal of 12743135 is 53134721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53134721 = 61 ⋅871061.

It is a cyclic number.

It is not a de Polignac number, because 12743135 - 2² = 12743131 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12743131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274309 + ... + 1274318.

It is an arithmetic number, because the mean of its divisors is an integer number (3822942).

Almost surely, 2^12743135 is an apocalyptic number.

12743135 is a deficient number, since it is larger than the sum of its proper divisors (2548633).

12743135 is an equidigital number, since it uses as much as digits as its factorization.

12743135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548632.

The product of its digits is 2520, while the sum is 26.

The square root of 12743135 is about 3569.7527925614. The cubic root of 12743135 is about 233.5745000841.

Adding to 12743135 its reverse (53134721), we get a palindrome (65877856).

The spelling of 12743135 in words is "twelve million, seven hundred forty-three thousand, one hundred thirty-five".