12939573 has 4 divisors (see below), whose sum is σ = 17252768. Its totient is φ = 8626380.

The previous prime is 12939571. The next prime is 12939583. The reversal of 12939573 is 37593921.

12939573 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, and also an emirpimes, since its reverse is a distinct semiprime: 37593921 = 3 ⋅12531307.

It is not a de Polignac number, because 12939573 - 2¹ = 12939571 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12939571) 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, 2156593 + ... + 2156598.

It is an arithmetic number, because the mean of its divisors is an integer number (4313192).

Almost surely, 2^12939573 is an apocalyptic number.

It is an amenable number.

12939573 is a deficient number, since it is larger than the sum of its proper divisors (4313195).

12939573 is an equidigital number, since it uses as much as digits as its factorization.

12939573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313194.

The product of its digits is 51030, while the sum is 39.

The square root of 12939573 is about 3597.1617978623. The cubic root of 12939573 is about 234.7685846234.

The spelling of 12939573 in words is "twelve million, nine hundred thirty-nine thousand, five hundred seventy-three".