163505101 has 2 divisors, whose sum is σ = 163505102. Its totient is φ = 163505100.

The previous prime is 163505093. The next prime is 163505117. The reversal of 163505101 is 101505361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122877225 + 40627876 = 11085^2 + 6374^2 .

It is a cyclic number.

It is not a de Polignac number, because 163505101 - 2³ = 163505093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163505141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81752550 + 81752551.

It is an arithmetic number, because the mean of its divisors is an integer number (81752551).

Almost surely, 2^163505101 is an apocalyptic number.

It is an amenable number.

163505101 is a deficient number, since it is larger than the sum of its proper divisors (1).

163505101 is an equidigital number, since it uses as much as digits as its factorization.

163505101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 163505101 is about 12786.9113158730. The cubic root of 163505101 is about 546.8192170846.

The spelling of 163505101 in words is "one hundred sixty-three million, five hundred five thousand, one hundred one".