9170161 has 16 divisors (see below), whose sum is σ = 12313728. Its totient is φ = 6595200.

The previous prime is 9170149. The next prime is 9170171. The reversal of 9170161 is 1610719.

It is a cyclic number.

It is not a de Polignac number, because 9170161 - 2⁵ = 9170129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9170111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3580 + ... + 5581.

It is an arithmetic number, because the mean of its divisors is an integer number (769608).

Almost surely, 2^9170161 is an apocalyptic number.

9170161 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

9170161 is a deficient number, since it is larger than the sum of its proper divisors (3143567).

9170161 is a wasteful number, since it uses less digits than its factorization.

9170161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9192.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 9170161 is about 3028.2273692707. The cubic root of 9170161 is about 209.3111289844.

The spelling of 9170161 in words is "nine million, one hundred seventy thousand, one hundred sixty-one".