12740073 has 4 divisors (see below), whose sum is σ = 16986768. Its totient is φ = 8493380.

The previous prime is 12740059. The next prime is 12740081. The reversal of 12740073 is 37004721.

12740073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12740073 - 2¹⁰ = 12739049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12740003) 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, 2123343 + ... + 2123348.

It is an arithmetic number, because the mean of its divisors is an integer number (4246692).

Almost surely, 2^12740073 is an apocalyptic number.

It is an amenable number.

12740073 is a deficient number, since it is larger than the sum of its proper divisors (4246695).

12740073 is an equidigital number, since it uses as much as digits as its factorization.

12740073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4246694.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 12740073 is about 3569.3238855559. The cubic root of 12740073 is about 233.5557903393. Note that the first 3 decimals are identical.

Adding to 12740073 its reverse (37004721), we get a palindrome (49744794).

The spelling of 12740073 in words is "twelve million, seven hundred forty thousand, seventy-three".