4191563 has 2 divisors, whose sum is σ = 4191564. Its totient is φ = 4191562.

The previous prime is 4191529. The next prime is 4191581. The reversal of 4191563 is 3651914.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4191563 - 2²⁰ = 3142987 is a prime.

It is not a weakly prime, because it can be changed into another prime (4191463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2095781 + 2095782.

It is an arithmetic number, because the mean of its divisors is an integer number (2095782).

Almost surely, 2^4191563 is an apocalyptic number.

4191563 is a deficient number, since it is larger than the sum of its proper divisors (1).

4191563 is an equidigital number, since it uses as much as digits as its factorization.

4191563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 4191563 is about 2047.3307011814. The cubic root of 4191563 is about 161.2347564862.

The spelling of 4191563 in words is "four million, one hundred ninety-one thousand, five hundred sixty-three".