361189 has 4 divisors (see below), whose sum is σ = 362880. Its totient is φ = 359500.

The previous prime is 361183. The next prime is 361211. The reversal of 361189 is 981163.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 981163 = 233 ⋅4211.

It is a cyclic number.

It is not a de Polignac number, because 361189 - 2¹⁵ = 328421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361183) 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, 469 + ... + 970.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2³⁶¹¹⁸⁹ is an apocalyptic number.

It is an amenable number.

361189 is a deficient number, since it is larger than the sum of its proper divisors (1691).

361189 is a wasteful number, since it uses less digits than its factorization.

361189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690.

The product of its digits is 1296, while the sum is 28.

The square root of 361189 is about 600.9900165560. The cubic root of 361189 is about 71.2160975470.

It can be divided in two parts, 36 and 1189, that added together give a triangular number (1225 = T₄₉).

The spelling of 361189 in words is "three hundred sixty-one thousand, one hundred eighty-nine".