12513563 has 2 divisors, whose sum is σ = 12513564. Its totient is φ = 12513562.

The previous prime is 12513517. The next prime is 12513577. The reversal of 12513563 is 36531521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12513563 - 2⁶ = 12513499 is a prime.

It is not a weakly prime, because it can be changed into another prime (12513503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256781 + 6256782.

It is an arithmetic number, because the mean of its divisors is an integer number (6256782).

Almost surely, 2^12513563 is an apocalyptic number.

12513563 is a deficient number, since it is larger than the sum of its proper divisors (1).

12513563 is an equidigital number, since it uses as much as digits as its factorization.

12513563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 26.

The square root of 12513563 is about 3537.4514837662. The cubic root of 12513563 is about 232.1633498325.

The spelling of 12513563 in words is "twelve million, five hundred thirteen thousand, five hundred sixty-three".