361161 has 6 divisors (see below), whose sum is σ = 521690. Its totient is φ = 240768.

The previous prime is 361159. The next prime is 361183. The reversal of 361161 is 161163.

It can be written as a sum of positive squares in only one way, i.e., 197136 + 164025 = 444^2 + 405^2 .

It is not a de Polignac number, because 361161 - 2¹ = 361159 is a prime.

It is a Duffinian number.

361161 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 361161.

It is not an unprimeable number, because it can be changed into a prime (361111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20056 + ... + 20073.

2³⁶¹¹⁶¹ is an apocalyptic number.

It is an amenable number.

361161 is a deficient number, since it is larger than the sum of its proper divisors (160529).

361161 is a wasteful number, since it uses less digits than its factorization.

361161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40135 (or 40132 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 361161 is about 600.9667212084. The cubic root of 361161 is about 71.2142572341.

The spelling of 361161 in words is "three hundred sixty-one thousand, one hundred sixty-one".