12963523 has 4 divisors (see below), whose sum is σ = 12984328. Its totient is φ = 12942720.

The previous prime is 12963499. The next prime is 12963563. The reversal of 12963523 is 32536921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32536921 = 349 ⋅93229.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12963523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12963563) 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, 9438 + ... + 10723.

It is an arithmetic number, because the mean of its divisors is an integer number (3246082).

Almost surely, 2^12963523 is an apocalyptic number.

12963523 is a deficient number, since it is larger than the sum of its proper divisors (20805).

12963523 is an equidigital number, since it uses as much as digits as its factorization.

12963523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20804.

The product of its digits is 9720, while the sum is 31.

The square root of 12963523 is about 3600.4892723073. The cubic root of 12963523 is about 234.9133406139.

The spelling of 12963523 in words is "twelve million, nine hundred sixty-three thousand, five hundred twenty-three".