12591073 has 4 divisors (see below), whose sum is σ = 13735728. Its totient is φ = 11446420.

The previous prime is 12591043. The next prime is 12591149. The reversal of 12591073 is 37019521.

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 12591073 - 2⁵ = 12591041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12591023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572311 + ... + 572332.

It is an arithmetic number, because the mean of its divisors is an integer number (3433932).

Almost surely, 2^12591073 is an apocalyptic number.

It is an amenable number.

12591073 is a deficient number, since it is larger than the sum of its proper divisors (1144655).

12591073 is a wasteful number, since it uses less digits than its factorization.

12591073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144654.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 12591073 is about 3548.3901983857. The cubic root of 12591073 is about 232.6417095787.

It can be divided in two parts, 1259 and 1073, that added together give a palindrome (2332).

The spelling of 12591073 in words is "twelve million, five hundred ninety-one thousand, seventy-three".