241665 has 8 divisors (see below), whose sum is σ = 386688. Its totient is φ = 128880.

The previous prime is 241663. The next prime is 241667. The reversal of 241665 is 566142.

It is an interprime number because it is at equal distance from previous prime (241663) and next prime (241667).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 241665 - 2¹ = 241663 is a prime.

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 241665.

It is not an unprimeable number, because it can be changed into a prime (241663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8041 + ... + 8070.

It is an arithmetic number, because the mean of its divisors is an integer number (48336).

241665 is a Friedman number, since it can be written as (2^6-5)*4^6+1, using all its digits and the basic arithmetic operations.

It is a Proth number, since it is equal to 59 ⋅ 2¹² + 1 and 59 < 2¹².

2²⁴¹⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

241665 is a deficient number, since it is larger than the sum of its proper divisors (145023).

241665 is a wasteful number, since it uses less digits than its factorization.

241665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16119.

The product of its digits is 1440, while the sum is 24.

The square root of 241665 is about 491.5943449634. The cubic root of 241665 is about 62.2880285692.

The spelling of 241665 in words is "two hundred forty-one thousand, six hundred sixty-five".