163046561 has 2 divisors, whose sum is σ = 163046562. Its totient is φ = 163046560.

The previous prime is 163046519. The next prime is 163046567. The reversal of 163046561 is 165640361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140541025 + 22505536 = 11855^2 + 4744^2 .

It is a cyclic number.

It is not a de Polignac number, because 163046561 - 2¹⁰ = 163045537 is a prime.

It is not a weakly prime, because it can be changed into another prime (163046567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81523280 + 81523281.

It is an arithmetic number, because the mean of its divisors is an integer number (81523281).

Almost surely, 2^163046561 is an apocalyptic number.

It is an amenable number.

163046561 is a deficient number, since it is larger than the sum of its proper divisors (1).

163046561 is an equidigital number, since it uses as much as digits as its factorization.

163046561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 163046561 is about 12768.9686740942. The cubic root of 163046561 is about 546.3075648656.

The spelling of 163046561 in words is "one hundred sixty-three million, forty-six thousand, five hundred sixty-one".