163709101 has 6 divisors (see below), whose sum is σ = 171136910. Its totient is φ = 156590808.

The previous prime is 163709087. The next prime is 163709107. The reversal of 163709101 is 101907361.

It can be written as a sum of positive squares in only one way, i.e., 162945225 + 763876 = 12765^2 + 874^2 .

It is not a de Polignac number, because 163709101 - 2⁵ = 163709069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163709101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163709107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154206 + ... + 155263.

Almost surely, 2^163709101 is an apocalyptic number.

It is an amenable number.

163709101 is a deficient number, since it is larger than the sum of its proper divisors (7427809).

163709101 is an equidigital number, since it uses as much as digits as its factorization.

163709101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309515 (or 309492 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 163709101 is about 12794.8857361057. The cubic root of 163709101 is about 547.0465387580.

The spelling of 163709101 in words is "one hundred sixty-three million, seven hundred nine thousand, one hundred one".