243713 has 8 divisors (see below), whose sum is σ = 261120. Its totient is φ = 226800.

The previous prime is 243709. The next prime is 243769. The reversal of 243713 is 317342.

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

It is a cyclic number.

It is not a de Polignac number, because 243713 - 2² = 243709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856 + ... + 1982.

It is an arithmetic number, because the mean of its divisors is an integer number (32640).

It is a Proth number, since it is equal to 119 ⋅ 2¹¹ + 1 and 119 < 2¹¹.

2²⁴³⁷¹³ is an apocalyptic number.

It is an amenable number.

243713 is a deficient number, since it is larger than the sum of its proper divisors (17407).

243713 is a wasteful number, since it uses less digits than its factorization.

243713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247.

The product of its digits is 504, while the sum is 20.

The square root of 243713 is about 493.6729686746. The cubic root of 243713 is about 62.4634880075.

The spelling of 243713 in words is "two hundred forty-three thousand, seven hundred thirteen".