8121450163 has 2 divisors, whose sum is σ = 8121450164. Its totient is φ = 8121450162.

The previous prime is 8121450133. The next prime is 8121450179. The reversal of 8121450163 is 3610541218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8121450163 - 2¹⁷ = 8121319091 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (8121450133) 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 as a sum of consecutive naturals, namely, 4060725081 + 4060725082.

It is an arithmetic number, because the mean of its divisors is an integer number (4060725082).

Almost surely, 2^8121450163 is an apocalyptic number.

8121450163 is a deficient number, since it is larger than the sum of its proper divisors (1).

8121450163 is an equidigital number, since it uses as much as digits as its factorization.

8121450163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 8121450163 is about 90119.0887825659. The cubic root of 8121450163 is about 2010.0700587777.

The spelling of 8121450163 in words is "eight billion, one hundred twenty-one million, four hundred fifty thousand, one hundred sixty-three".