168841 has 4 divisors (see below), whose sum is σ = 170500. Its totient is φ = 167184.

The previous prime is 168803. The next prime is 168851. The reversal of 168841 is 148861.

168841 = T₃₃₄ + T₃₃₅ + T₃₃₆.

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 87616 + 81225 = 296^2 + 285^2 .

It is a cyclic number.

It is not a de Polignac number, because 168841 - 2⁷ = 168713 is a prime.

It is an Ulam number.

It is a Duffinian number.

168841 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168851) 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, 666 + ... + 883.

It is an arithmetic number, because the mean of its divisors is an integer number (42625).

2¹⁶⁸⁸⁴¹ is an apocalyptic number.

168841 is the 336-th centered triangular number.

It is an amenable number.

168841 is a deficient number, since it is larger than the sum of its proper divisors (1659).

168841 is a wasteful number, since it uses less digits than its factorization.

168841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658.

The product of its digits is 1536, while the sum is 28.

The square root of 168841 is about 410.9026648733. The cubic root of 168841 is about 55.2704039351.

The spelling of 168841 in words is "one hundred sixty-eight thousand, eight hundred forty-one".