361559 has 4 divisors (see below), whose sum is σ = 394440. Its totient is φ = 328680.

The previous prime is 361549. The next prime is 361561. The reversal of 361559 is 955163.

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

It is a de Polignac number, because none of the positive numbers 2^k-361559 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 361559.

It is not an unprimeable number, because it can be changed into a prime (361549) 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, 16424 + ... + 16445.

It is an arithmetic number, because the mean of its divisors is an integer number (98610).

2³⁶¹⁵⁵⁹ is an apocalyptic number.

361559 is a deficient number, since it is larger than the sum of its proper divisors (32881).

361559 is a wasteful number, since it uses less digits than its factorization.

361559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32880.

The product of its digits is 4050, while the sum is 29.

The square root of 361559 is about 601.2977631756. The cubic root of 361559 is about 71.2404070392.

The spelling of 361559 in words is "three hundred sixty-one thousand, five hundred fifty-nine".