241909 has 4 divisors (see below), whose sum is σ = 247104. Its totient is φ = 236716.

The previous prime is 241907. The next prime is 241919. The reversal of 241909 is 909142.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 241909 - 2¹ = 241907 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 (241903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2527 + ... + 2620.

It is an arithmetic number, because the mean of its divisors is an integer number (61776).

2²⁴¹⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

241909 is a deficient number, since it is larger than the sum of its proper divisors (5195).

241909 is an equidigital number, since it uses as much as digits as its factorization.

241909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5194.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 241909 is about 491.8424544506. The cubic root of 241909 is about 62.3089848059.

The spelling of 241909 in words is "two hundred forty-one thousand, nine hundred nine".