241539 has 4 divisors (see below), whose sum is σ = 322056. Its totient is φ = 161024.

The previous prime is 241537. The next prime is 241543. The reversal of 241539 is 935142.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 241539 - 2¹ = 241537 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (241537) 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, 40254 + ... + 40259.

It is an arithmetic number, because the mean of its divisors is an integer number (80514).

2²⁴¹⁵³⁹ is an apocalyptic number.

241539 is a deficient number, since it is larger than the sum of its proper divisors (80517).

241539 is an equidigital number, since it uses as much as digits as its factorization.

241539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80516.

The product of its digits is 1080, while the sum is 24.

The square root of 241539 is about 491.4661738106. The cubic root of 241539 is about 62.2772013828.

It can be divided in two parts, 241 and 539, that added together give a triangular number (780 = T₃₉).

The spelling of 241539 in words is "two hundred forty-one thousand, five hundred thirty-nine".