243941 has 8 divisors (see below), whose sum is σ = 264480. Its totient is φ = 224208.

The previous prime is 243931. The next prime is 243953. The reversal of 243941 is 149342.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243941 is a prime.

It is a super-2 number, since 2×243941² = 119014422962, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁹ + 4² + 9³ + 3¹¹ + 4⁸ + 1 .

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 243941.

It is not an unprimeable number, because it can be changed into a prime (243911) 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 7 ways as a sum of consecutive naturals, for example, 530 + ... + 876.

It is an arithmetic number, because the mean of its divisors is an integer number (33060).

2²⁴³⁹⁴¹ is an apocalyptic number.

It is an amenable number.

243941 is a deficient number, since it is larger than the sum of its proper divisors (20539).

243941 is a wasteful number, since it uses less digits than its factorization.

243941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

The product of its digits is 864, while the sum is 23.

The square root of 243941 is about 493.9038367942. The cubic root of 243941 is about 62.4829606883.

It can be divided in two parts, 2439 and 41, that multiplied together give a palindrome (99999).

The spelling of 243941 in words is "two hundred forty-three thousand, nine hundred forty-one".