7170161 has 2 divisors, whose sum is σ = 7170162. Its totient is φ = 7170160.

The previous prime is 7170127. The next prime is 7170173. The reversal of 7170161 is 1610717.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5085025 + 2085136 = 2255^2 + 1444^2 .

It is a cyclic number.

It is not a de Polignac number, because 7170161 - 2¹⁸ = 6908017 is a prime.

It is a super-2 number, since 2×7170161² = 102822417531842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7100161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3585080 + 3585081.

It is an arithmetic number, because the mean of its divisors is an integer number (3585081).

Almost surely, 2^7170161 is an apocalyptic number.

It is an amenable number.

7170161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7170161 is an equidigital number, since it uses as much as digits as its factorization.

7170161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294, while the sum is 23.

The square root of 7170161 is about 2677.7156309063. The cubic root of 7170161 is about 192.8307553681.

Adding to 7170161 its reverse (1610717), we get a palindrome (8780878).

The spelling of 7170161 in words is "seven million, one hundred seventy thousand, one hundred sixty-one".