12742073 has 2 divisors, whose sum is σ = 12742074. Its totient is φ = 12742072.

The previous prime is 12742057. The next prime is 12742099. The reversal of 12742073 is 37024721.

It is an a-pointer prime, because the next prime (12742099) can be obtained adding 12742073 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12730624 + 11449 = 3568^2 + 107^2 .

It is a cyclic number.

It is not a de Polignac number, because 12742073 - 2⁴ = 12742057 is a prime.

It is not a weakly prime, because it can be changed into another prime (12742003) 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, 6371036 + 6371037.

It is an arithmetic number, because the mean of its divisors is an integer number (6371037).

Almost surely, 2^12742073 is an apocalyptic number.

It is an amenable number.

12742073 is a deficient number, since it is larger than the sum of its proper divisors (1).

12742073 is an equidigital number, since it uses as much as digits as its factorization.

12742073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 12742073 is about 3569.6040396660. The cubic root of 12742073 is about 233.5680112828.

Adding to 12742073 its reverse (37024721), we get a palindrome (49766794).

The spelling of 12742073 in words is "twelve million, seven hundred forty-two thousand, seventy-three".