167161 has 4 divisors (see below), whose sum is σ = 177012. Its totient is φ = 157312.

The previous prime is 167159. The next prime is 167173. The reversal of 167161 is 161761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109561 + 57600 = 331^2 + 240^2 .

It is a cyclic number.

It is not a de Polignac number, because 167161 - 2¹ = 167159 is a prime.

It is a Duffinian number.

167161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (167191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4900 + ... + 4933.

It is an arithmetic number, because the mean of its divisors is an integer number (44253).

2¹⁶⁷¹⁶¹ is an apocalyptic number.

It is an amenable number.

167161 is a deficient number, since it is larger than the sum of its proper divisors (9851).

167161 is an equidigital number, since it uses as much as digits as its factorization.

167161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9850.

The product of its digits is 252, while the sum is 22.

The square root of 167161 is about 408.8532744152. The cubic root of 167161 is about 55.0864755350.

The spelling of 167161 in words is "one hundred sixty-seven thousand, one hundred sixty-one".