170116121 has 8 divisors (see below), whose sum is σ = 199673280. Its totient is φ = 141872688.

The previous prime is 170116097. The next prime is 170116153. The reversal of 170116121 is 121611071.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 170116121 - 2¹⁰ = 170115097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 170116093 and 170116102.

It is not an unprimeable number, because it can be changed into a prime (170116181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328151 + ... + 328668.

It is an arithmetic number, because the mean of its divisors is an integer number (24959160).

Almost surely, 2^170116121 is an apocalyptic number.

It is an amenable number.

170116121 is a deficient number, since it is larger than the sum of its proper divisors (29557159).

170116121 is an equidigital number, since it uses as much as digits as its factorization.

170116121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656863.

The product of its (nonzero) digits is 84, while the sum is 20.

The square root of 170116121 is about 13042.8570873103. The cubic root of 170116121 is about 554.0919284689.

Adding to 170116121 its reverse (121611071), we get a palindrome (291727192).

It can be divided in two parts, 17011 and 6121, that added together give a palindrome (23132).

The spelling of 170116121 in words is "one hundred seventy million, one hundred sixteen thousand, one hundred twenty-one".