9170121 has 8 divisors (see below), whose sum is σ = 12252384. Its totient is φ = 6100640.

The previous prime is 9170111. The next prime is 9170129. The reversal of 9170121 is 1210719.

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 9170121 - 2¹⁴ = 9153737 is a prime.

It is a super-2 number, since 2×9170121² = 168182238309282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9170129) 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 7 ways as a sum of consecutive naturals, for example, 1371 + ... + 4496.

It is an arithmetic number, because the mean of its divisors is an integer number (1531548).

Almost surely, 2^9170121 is an apocalyptic number.

It is an amenable number.

9170121 is a deficient number, since it is larger than the sum of its proper divisors (3082263).

9170121 is a wasteful number, since it uses less digits than its factorization.

9170121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6391.

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 9170121 is about 3028.2207647396. The cubic root of 9170121 is about 209.3108246474.

The spelling of 9170121 in words is "nine million, one hundred seventy thousand, one hundred twenty-one".