12563453 has 12 divisors (see below), whose sum is σ = 14750460. Its totient is φ = 10668672.

The previous prime is 12563443. The next prime is 12563477. The reversal of 12563453 is 35436521.

It can be written as a sum of positive squares in 2 ways, for example, as 362404 + 12201049 = 602^2 + 3493^2 .

It is not a de Polignac number, because 12563453 - 2⁴ = 12563437 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 (12563413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4403 + ... + 6671.

It is an arithmetic number, because the mean of its divisors is an integer number (1229205).

Almost surely, 2^12563453 is an apocalyptic number.

It is an amenable number.

12563453 is a deficient number, since it is larger than the sum of its proper divisors (2187007).

12563453 is a wasteful number, since it uses less digits than its factorization.

12563453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396 (or 2389 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 12563453 is about 3544.4961560143. The cubic root of 12563453 is about 232.4714760552.

Adding to 12563453 its reverse (35436521), we get a palindrome (47999974).

The spelling of 12563453 in words is "twelve million, five hundred sixty-three thousand, four hundred fifty-three".