12742127 has 4 divisors (see below), whose sum is σ = 12932376. Its totient is φ = 12551880.

The previous prime is 12742117. The next prime is 12742133. The reversal of 12742127 is 72124721.

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

It is a cyclic number.

It is not a de Polignac number, because 12742127 - 2⁴ = 12742111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12742096 and 12742105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12742117) 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, 95024 + ... + 95157.

It is an arithmetic number, because the mean of its divisors is an integer number (3233094).

Almost surely, 2^12742127 is an apocalyptic number.

12742127 is a deficient number, since it is larger than the sum of its proper divisors (190249).

12742127 is an equidigital number, since it uses as much as digits as its factorization.

12742127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190248.

The product of its digits is 1568, while the sum is 26.

The square root of 12742127 is about 3569.6116035222. The cubic root of 12742127 is about 233.5683412306.

Adding to 12742127 its reverse (72124721), we get a palindrome (84866848).

The spelling of 12742127 in words is "twelve million, seven hundred forty-two thousand, one hundred twenty-seven".