161075 has 12 divisors (see below), whose sum is σ = 212040. Its totient is φ = 120960.
The previous prime is 161071. The next prime is 161087. The reversal of 161075 is 570161.
It is not a de Polignac number, because 161075 - 22 = 161071 is a prime.
It is not an unprimeable number, because it can be changed into a prime (161071) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236 + ... + 614.
It is an arithmetic number, because the mean of its divisors is an integer number (17670).
2161075 is an apocalyptic number.
161075 is a deficient number, since it is larger than the sum of its proper divisors (50965).
161075 is a wasteful number, since it uses less digits than its factorization.
161075 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 406 (or 401 counting only the distinct ones).
The product of its (nonzero) digits is 210, while the sum is 20.
The square root of 161075 is about 401.3415004706. The cubic root of 161075 is about 54.4096643369.
The spelling of 161075 in words is "one hundred sixty-one thousand, seventy-five".
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