12956573 has 4 divisors (see below), whose sum is σ = 14807520. Its totient is φ = 11105628.

The previous prime is 12956563. The next prime is 12956597. The reversal of 12956573 is 37565921.

It is a happy number.

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: 37565921 = 89 ⋅422089.

It is a cyclic number.

It is not a de Polignac number, because 12956573 - 2⁶ = 12956509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12956563) 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, 925463 + ... + 925476.

It is an arithmetic number, because the mean of its divisors is an integer number (3701880).

Almost surely, 2^12956573 is an apocalyptic number.

It is an amenable number.

12956573 is a deficient number, since it is larger than the sum of its proper divisors (1850947).

12956573 is an equidigital number, since it uses as much as digits as its factorization.

12956573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850946.

The product of its digits is 56700, while the sum is 38.

The square root of 12956573 is about 3599.5239963084. The cubic root of 12956573 is about 234.8713525533.

The spelling of 12956573 in words is "twelve million, nine hundred fifty-six thousand, five hundred seventy-three".