163730101 has 4 divisors (see below), whose sum is σ = 163936332. Its totient is φ = 163523872.

The previous prime is 163730071. The next prime is 163730117. The reversal of 163730101 is 101037361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88924900 + 74805201 = 9430^2 + 8649^2 .

It is a cyclic number.

It is not a de Polignac number, because 163730101 - 2¹⁹ = 163205813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163730131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101920 + ... + 103513.

It is an arithmetic number, because the mean of its divisors is an integer number (40984083).

Almost surely, 2^163730101 is an apocalyptic number.

It is an amenable number.

163730101 is a deficient number, since it is larger than the sum of its proper divisors (206231).

163730101 is an equidigital number, since it uses as much as digits as its factorization.

163730101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206230.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 163730101 is about 12795.7063501786. The cubic root of 163730101 is about 547.0699287957.

Adding to 163730101 its reverse (101037361), we get a palindrome (264767462).

The spelling of 163730101 in words is "one hundred sixty-three million, seven hundred thirty thousand, one hundred one".