12158573 has 4 divisors (see below), whose sum is σ = 13895520. Its totient is φ = 10421628.

The previous prime is 12158567. The next prime is 12158609. The reversal of 12158573 is 37585121.

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 12158573 - 2¹² = 12154477 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 (12158563) 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, 868463 + ... + 868476.

It is an arithmetic number, because the mean of its divisors is an integer number (3473880).

Almost surely, 2^12158573 is an apocalyptic number.

It is an amenable number.

12158573 is a deficient number, since it is larger than the sum of its proper divisors (1736947).

12158573 is an equidigital number, since it uses as much as digits as its factorization.

12158573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736946.

The product of its digits is 8400, while the sum is 32.

The square root of 12158573 is about 3486.9145386717. The cubic root of 12158573 is about 229.9468875470.

The spelling of 12158573 in words is "twelve million, one hundred fifty-eight thousand, five hundred seventy-three".