12742907 has 4 divisors (see below), whose sum is σ = 12896520. Its totient is φ = 12589296.

The previous prime is 12742903. The next prime is 12742913. The reversal of 12742907 is 70924721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70924721 = 7 ⋅10132103.

It is a cyclic number.

It is not a de Polignac number, because 12742907 - 2² = 12742903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12742903) 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, 76682 + ... + 76847.

It is an arithmetic number, because the mean of its divisors is an integer number (3224130).

Almost surely, 2^12742907 is an apocalyptic number.

12742907 is a deficient number, since it is larger than the sum of its proper divisors (153613).

12742907 is an equidigital number, since it uses as much as digits as its factorization.

12742907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153612.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 12742907 is about 3569.7208574341. The cubic root of 12742907 is about 233.5731070385.

It can be divided in two parts, 127 and 42907, that added together give a palindrome (43034).

The spelling of 12742907 in words is "twelve million, seven hundred forty-two thousand, nine hundred seven".