8146145563 has 2 divisors, whose sum is σ = 8146145564. Its totient is φ = 8146145562.

The previous prime is 8146145531. The next prime is 8146145569. The reversal of 8146145563 is 3655416418.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8146145563 - 2⁵ = 8146145531 is a prime.

It is not a weakly prime, because it can be changed into another prime (8146145569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4073072781 + 4073072782.

It is an arithmetic number, because the mean of its divisors is an integer number (4073072782).

Almost surely, 2^8146145563 is an apocalyptic number.

8146145563 is a deficient number, since it is larger than the sum of its proper divisors (1).

8146145563 is an equidigital number, since it uses as much as digits as its factorization.

8146145563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 43.

The square root of 8146145563 is about 90256.0001495745. Note that the first 3 decimals coincide. The cubic root of 8146145563 is about 2012.1053789894.

The spelling of 8146145563 in words is "eight billion, one hundred forty-six million, one hundred forty-five thousand, five hundred sixty-three".