243371 has 4 divisors (see below), whose sum is σ = 256200. Its totient is φ = 230544.

The previous prime is 243367. The next prime is 243391. The reversal of 243371 is 173342.

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 243371 - 2² = 243367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243301) 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, 6386 + ... + 6423.

It is an arithmetic number, because the mean of its divisors is an integer number (64050).

2²⁴³³⁷¹ is an apocalyptic number.

243371 is a deficient number, since it is larger than the sum of its proper divisors (12829).

243371 is a wasteful number, since it uses less digits than its factorization.

243371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12828.

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

The square root of 243371 is about 493.3264639161. The cubic root of 243371 is about 62.4342562016.

The spelling of 243371 in words is "two hundred forty-three thousand, three hundred seventy-one", and thus it is an iban number.