181041 has 16 divisors (see below), whose sum is σ = 284544. Its totient is φ = 100224.

The previous prime is 181039. The next prime is 181061. The reversal of 181041 is 140181.

It is not a de Polignac number, because 181041 - 2¹ = 181039 is a prime.

181041 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 181041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661 + ... + 893.

It is an arithmetic number, because the mean of its divisors is an integer number (17784).

2¹⁸¹⁰⁴¹ is an apocalyptic number.

It is an amenable number.

181041 is a deficient number, since it is larger than the sum of its proper divisors (103503).

181041 is a wasteful number, since it uses less digits than its factorization.

181041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 181041 is about 425.4891302959. The cubic root of 181041 is about 56.5707990733.

Multiplying 181041 by its sum of digits (15), we get a triangular number (2715615 = T₂₃₃₀).

The spelling of 181041 in words is "one hundred eighty-one thousand, forty-one".