13157563 has 2 divisors, whose sum is σ = 13157564. Its totient is φ = 13157562.

The previous prime is 13157539. The next prime is 13157567. The reversal of 13157563 is 36575131.

13157563 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13157563 - 2¹⁷ = 13026491 is a prime.

It is not a weakly prime, because it can be changed into another prime (13157567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6578781 + 6578782.

It is an arithmetic number, because the mean of its divisors is an integer number (6578782).

Almost surely, 2^13157563 is an apocalyptic number.

13157563 is a deficient number, since it is larger than the sum of its proper divisors (1).

13157563 is an equidigital number, since it uses as much as digits as its factorization.

13157563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 31.

The square root of 13157563 is about 3627.3355234938. The cubic root of 13157563 is about 236.0796138079.

The spelling of 13157563 in words is "thirteen million, one hundred fifty-seven thousand, five hundred sixty-three".