181359 has 10 divisors (see below), whose sum is σ = 271040. Its totient is φ = 120852.

The previous prime is 181303. The next prime is 181361. The reversal of 181359 is 953181.

It is not a de Polignac number, because 181359 - 2⁹ = 180847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181399) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1039 + ... + 1200.

It is an arithmetic number, because the mean of its divisors is an integer number (27104).

2¹⁸¹³⁵⁹ is an apocalyptic number.

181359 is a deficient number, since it is larger than the sum of its proper divisors (89681).

181359 is an equidigital number, since it uses as much as digits as its factorization.

181359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251 (or 2242 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 181359 is about 425.8626539156. The cubic root of 181359 is about 56.6039020563.

The spelling of 181359 in words is "one hundred eighty-one thousand, three hundred fifty-nine".