241609 has 4 divisors (see below), whose sum is σ = 242704. Its totient is φ = 240516.

The previous prime is 241603. The next prime is 241639. The reversal of 241609 is 906142.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 241609 - 2³ = 241601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 241609.

It is not an unprimeable number, because it can be changed into a prime (241601) 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, 87 + ... + 700.

It is an arithmetic number, because the mean of its divisors is an integer number (60676).

2²⁴¹⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

241609 is a deficient number, since it is larger than the sum of its proper divisors (1095).

241609 is an equidigital number, since it uses as much as digits as its factorization.

241609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 241609 is about 491.5373841327. The cubic root of 241609 is about 62.2832169511.

The spelling of 241609 in words is "two hundred forty-one thousand, six hundred nine".