12713523 has 4 divisors (see below), whose sum is σ = 16951368. Its totient is φ = 8475680.

The previous prime is 12713521. The next prime is 12713537. The reversal of 12713523 is 32531721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32531721 = 3 ⋅10843907.

It is a cyclic number.

It is not a de Polignac number, because 12713523 - 2¹ = 12713521 is a prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 12713493 and 12713502.

It is not an unprimeable number, because it can be changed into a prime (12713521) 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, 2118918 + ... + 2118923.

It is an arithmetic number, because the mean of its divisors is an integer number (4237842).

Almost surely, 2^12713523 is an apocalyptic number.

12713523 is a deficient number, since it is larger than the sum of its proper divisors (4237845).

12713523 is an equidigital number, since it uses as much as digits as its factorization.

12713523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237844.

The product of its digits is 1260, while the sum is 24.

The square root of 12713523 is about 3565.6027540936. The cubic root of 12713523 is about 233.3934359912.

The spelling of 12713523 in words is "twelve million, seven hundred thirteen thousand, five hundred twenty-three".