12735742 has 4 divisors (see below), whose sum is σ = 19103616. Its totient is φ = 6367870.

The previous prime is 12735739. The next prime is 12735743. The reversal of 12735742 is 24753721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24753721 = 97 ⋅255193.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12735743) 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 as a sum of consecutive naturals, namely, 3183934 + ... + 3183937.

It is an arithmetic number, because the mean of its divisors is an integer number (4775904).

Almost surely, 2^12735742 is an apocalyptic number.

12735742 is a deficient number, since it is larger than the sum of its proper divisors (6367874).

12735742 is an equidigital number, since it uses as much as digits as its factorization.

12735742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6367873.

The product of its digits is 11760, while the sum is 31.

The square root of 12735742 is about 3568.7171364511. The cubic root of 12735742 is about 233.5293215016.

The spelling of 12735742 in words is "twelve million, seven hundred thirty-five thousand, seven hundred forty-two".