361105 has 4 divisors (see below), whose sum is σ = 433332. Its totient is φ = 288880.

The previous prime is 361093. The next prime is 361111. The reversal of 361105 is 501163.

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 103041 + 258064 = 321^2 + 508^2 .

It is not a de Polignac number, because 361105 - 2⁷ = 360977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36106 + ... + 36115.

It is an arithmetic number, because the mean of its divisors is an integer number (108333).

2³⁶¹¹⁰⁵ is an apocalyptic number.

It is an amenable number.

361105 is a deficient number, since it is larger than the sum of its proper divisors (72227).

361105 is an equidigital number, since it uses as much as digits as its factorization.

361105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72226.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 361105 is about 600.9201278040. The cubic root of 361105 is about 71.2105763231.

Adding to 361105 its reverse (501163), we get a palindrome (862268).

It can be divided in two parts, 3 and 61105, that multiplied together give a triangular number (183315 = T₆₀₅).

The spelling of 361105 in words is "three hundred sixty-one thousand, one hundred five".