241685 has 4 divisors (see below), whose sum is σ = 290028. Its totient is φ = 193344.

The previous prime is 241679. The next prime is 241687. The reversal of 241685 is 586142.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 586142 = 2 ⋅293071.

It can be written as a sum of positive squares in 2 ways, for example, as 152881 + 88804 = 391^2 + 298^2 .

It is a cyclic number.

It is not a de Polignac number, because 241685 - 2⁸ = 241429 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 (241687) 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, 24164 + ... + 24173.

It is an arithmetic number, because the mean of its divisors is an integer number (72507).

2²⁴¹⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

241685 is a deficient number, since it is larger than the sum of its proper divisors (48343).

241685 is an equidigital number, since it uses as much as digits as its factorization.

241685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48342.

The product of its digits is 1920, while the sum is 26.

The square root of 241685 is about 491.6146865178. The cubic root of 241685 is about 62.2897468241.

The spelling of 241685 in words is "two hundred forty-one thousand, six hundred eighty-five".