12742 has 8 divisors (see below), whose sum is σ = 20016. Its totient is φ = 6072.

The previous prime is 12739. The next prime is 12743. The reversal of 12742 is 24721.

12742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93 + ... + 184.

It is an arithmetic number, because the mean of its divisors is an integer number (2502).

2¹²⁷⁴² is an apocalyptic number.

12742 is a deficient number, since it is larger than the sum of its proper divisors (7274).

12742 is a wasteful number, since it uses less digits than its factorization.

12742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302.

The product of its digits is 112, while the sum is 16.

The square root of 12742 is about 112.8804677524. The cubic root of 12742 is about 23.3567565241.

It can be divided in two parts, 127 and 42, that added together give a square (169 = 13²).

The spelling of 12742 in words is "twelve thousand, seven hundred forty-two", and thus it is an iban number.