12012573 has 4 divisors (see below), whose sum is σ = 16016768. Its totient is φ = 8008380.

The previous prime is 12012551. The next prime is 12012599. The reversal of 12012573 is 37521021.

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 not a de Polignac number, because 12012573 - 2¹³ = 12004381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012073) 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 in 3 ways as a sum of consecutive naturals, for example, 2002093 + ... + 2002098.

It is an arithmetic number, because the mean of its divisors is an integer number (4004192).

Almost surely, 2^12012573 is an apocalyptic number.

It is an amenable number.

12012573 is a deficient number, since it is larger than the sum of its proper divisors (4004195).

12012573 is an equidigital number, since it uses as much as digits as its factorization.

12012573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004194.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12012573 is about 3465.9158962675. The cubic root of 12012573 is about 229.0227788913.

Adding to 12012573 its reverse (37521021), we get a palindrome (49533594).

The spelling of 12012573 in words is "twelve million, twelve thousand, five hundred seventy-three".